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    Underwriters Laboratories Incorporated


[Docket No. NRTL-4-93]

Underwriters Laboratories Incorporated

AGENCY: Occupational Safety and Health Administration, Department of Labor.

ACTION: Notice of Application for Renewal of Recognition as a Nationally Recognized Testing Laboratory, and Preliminary Finding.

SUMMARY: This notice announces the application of the Underwriters Laboratories Incorporated for renewal of its recognition as a Nationally Recognized Testing Laboratory (NRTL) under 29 CFR 1910.7, and presents the Agency's preliminary finding.

DATES: The last date for interested parties to submit comments is May 30, 1995.

ADDRESSES: Send comments to: NRTL Recognition Program, Office of Variance Determination, Occupational Safety and Health Administration, U.S. Department of Labor, 200 Constitution Avenue, N.W., Room N3653, Washington, D.C. 20210.

FOR FURTHER INFORMATION CONTACT: NRTL Recognition Program, Occupational Safety and Health Administration, U.S. Department of Labor, 200 Constitution Avenue, NW., Room N3653, Washington, D.C. 20210.

Notice of Application

SUPPLEMENTARY INFORMATION: Notice is hereby given that Underwriters Laboratories Incorporated (UL) has made application pursuant to section 6(b) of the Occupational Safety and Health Act of 1970, (84 Stat. 1593, 29 U.S.C. 655), Secretary of Labor's Order No. 1-90 (55 FR 9033), and 29 CFR 1910.7 for renewal of its recognition for the following facilities as a Nationally Recognized Testing Laboratory

The addresses of the laboratories covered by this application are:

333 Pfingsten Road, Northbrook, Illinois 60062 1285 Walt Whitman Road, Melville, Long Island, New York 11747 1655 Scott Boulevard, Santa Clara, California 95050 12 Laboratory Drive, P.O. Box 13995, Research Triangle Park, North Carolina 27709 2600 N.W. Lake Road, Camas, Washington 98607 UL International Limited, Veristrong Industrial Centre, Block B, 14th Floor, 34 Au Pui Wan Street, Fo Tan Sha Tin, New Territories, Hong Kong UL International Services, Ltd., 3rd Floor, No. 35, Chung Yang South Road, Section 2, Pei Tou 11237, Taipei, Taiwan


When OSHA published its standard for NRTLs at 29 CFR 1910.7, it temporarily recognized Underwriters Laboratories Incorporated (UL) and Factory Mutual Research Corporation (FMRC). Both organizations had already been referenced by the Occupational Safety and Health Administration (OSHA) as acceptable organizations for testing or certifying certain workplace equipment and materials. Appendix A of section 1910.7 stated, in part, that Underwriters Laboratories Incorporated was recognized temporarily as a nationally recognized testing laboratory by the Assistant Secretary for a five-year period from June 13, 1988 through June 13, 1993. At the end of this five-year period UL was required to apply for renewal of that OSHA recognition utilizing certain specified procedures. UL has applied for renewal of its recognition as an NRTL within the specified time frame (application dated September 30, 1993) and retains temporary recognition pending OSHA's final decision in this renewal process.


According to the applicant, Underwriters Laboratories Inc., is an independent, not-for-profit product safety certification organization, which was founded in 1894. UL has requested accreditation for its five major domestic certification locations, including its newest facility at Camas, Washington, and two overseas subsidiaries.

Regarding the merits of the application, the applicant contends that it meets the requirements of 29 CFR 1910.7 for renewal of its recognition to certify products in the areas of testing which it has specified.

Underwriters Laboratories Inc. states that its application demonstrates that for each specified item of equipment or material to be certified, it has the capability (including proper testing equipment and facilities, trained staff, written testing procedures, quality control and calibration programs) to perform testing and examination of equipment and materials for workplace safety purposes to determine conformance with appropriate product test standards.

It also claims that it supplies, to the extent needed for the particular equipment or materials listed, labeled or accepted, the following control or services: Implementation of control procedures for identifying UL Certified equipment or materials; inspection of the run of production of such items at factories; and conducting of field inspections.

UL states, further, that it is completely independent of employers subject to the tested equipment requirements and of any manufacturers or vendors of equipment or materials being tested for these purposes.

The applicant maintains that it has effective procedures for reports that are objective and without bias; and for handling complaints and disputes under a fair and reasonable system.

In summary, UL claims that it has the experience, expertise, personnel, organization, equipment, and facilities suitable for renewal of its accreditation as an OSHA Nationally Recognized Testing Laboratory.

UL's application (Exhibit 2A) consisted of the following segments which, it states, demonstrate the above claims:

Section 1 -- Introduction, purpose and format; Section 2 -- Scope and Application, standards sought for recognition; Section 3 -- Organizational Data, applicant's background, history, ownership, testing locations and external organizations used for technical support; Section 4 -- Affiliation, statement of independence; Section 5 -- Personnel, numbers and job descriptions of and training programs for technical staff, identification and qualifications of key personnel; Section 6 -- Services Provided, services provided certification marks, reports and records, follow-up inspection program and testing, and various programs involving client participation; Section 7 -- Testing Experience, testing experience, standards writing activity, and identification of various accreditations; Section 8 -- Control Programs, quality improvement system including Quality Control Manual, recording and control of data, supervision of samples, access security system, test procedures, lab personnel qualifications and test equipment records, standards, codes and regulations distribution, and uniform requirements interpretations; Section 9 -- Appeals Procedures/Procedures and Reports, appeals system, and product field reports; Section 10 -- Test Equipment, appropriateness and calibration of test equipment; Section 11 -- Facilities, size and adequacy of each facility; and Section 12 -- Supplemental Information -- representative NRTL program form.


Underwriters Laboratories Inc. has five main test facilities located in the United States, and two subsidiary laboratories in Asia. They are located in Northbrook, IL; Melville, NY; Santa Clara, CA; Research Triangle Park, NC; Camas, WA; Taipei, Taiwan; and, Hong Kong.

The Northbrook, Illinois facility contains the corporate headquarters and is the center for developing and distributing documents for the organization. It consists of three separate testing complexes, the largest of which contains the headquarters offices and the majority of the testing laboratories. Contained within this complex are the Standards Division, Follow-Up Services Division, Legal, Engineering Services Division, Administrative Division, Accounting, and External Affairs Division. Roughly 36 percent of the approximately 1700 employees comprise the technical staff at Northbrook.

All hazardous location testing is conducted at Northbrook. This facility, as do each of the others, performs testing and follow-up services for certain of UL's client base. Normally, each facility's clients are located within their own geographical area.

Other specifics of the Northbrook facility are contained in the Northbrook Report, Exhibit 2B, under headings pertaining to facilities, test equipment, calibration program, test and evaluation procedures, test reports, records, quality assurance, follow-up listing program, personnel, recognized third party testing, manufacturing site data, outside rental equipment, and third party contract services. In most instances, the procedures at the other four U.S. locations track those found at Northbrook, as do many of the procedures at both the Taiwan and Hong Kong facilities.

The Melville, New York facility houses the East and West International Inspection Services department that manages the follow-up inspections for products manufactured overseas. Each US based UL facility has an International Inspection Coordinator who functions on behalf of both the East and West International Inspection Services (IIS)

The IIS is divided into two sections for administrative purposes --

Eastern and Western. The Eastern section includes inspection centers in Asia, Australasia, Indian subcontinent and Canada. In addition, the Eastern Section coordinates the follow-up and engineering services for China. The Western section includes Mexico, Central and South America, the Caribbean, Africa, Europe, and the Near and Middle East.

UL maintains its own overseas inspection centers in many countries and also contracts out inspections to other inspection services. Many of these contracted inspection services have been in place for over 30 years. The services are performed by private inspection companies, by government inspection agencies, or by a quasi-governmental agency similar to our Postal Service.

The facilities located at Research Triangle Park, North Carolina, Santa Clara, California and Camas, Washington utilize procedures essentially similar to those as Northbrook and normally perform testing and follow-up services for clients located within their geographical areas.

The technical staff at Camas, Washington, the newest facility, is comprised of some 22 employees. The laboratory conducts electrical/ electronic testing. The equipment not available is purchased or loaned to Camas from other UL offices if required for short-term periods.

The Hong Kong and Taiwan facilities conduct testing and perform evaluations for clients located in the Far East. However, a client may choose to have the testing and evaluation done at one of the U.S. facilities.

The Hong Kong facility provides testing support for the UL programs for clients in Hong Kong, China, and Australasia. This office has been open since 1988.

In the Hong Kong area the testing laboratory and inspection services are housed in the same building. UL staff of the Inspection and Administration Services monitors the China National Import & Export Commodities Inspection Corporation (CCIC) for inspections carried out in China, which are controlled out of the UL Melville office. The staff also performs the inspections in Hong Kong.

The UL laboratory in Taiwan has been in existence for over 20 years, and performs services for clients within its geographical area. The Follow-Up Services Office in Taiwan (the Administration and Inspection Services Office) has been in existence for about 10 years.

The latest test standards are supplied from the Northbrook Office for both locations.

Neither facility rents equipments or subcontracts testing. Products that cannot be tested because of the lack of equipment are generally sent to a UL laboratory facility in the United States.

Senior management personnel are rotated from stateside appointments to positions in both the Hong Kong and the Taiwan offices.

All official UL records are in English. Some files contain translations and notes that are in other languages. Agreements between clients and the laboratory are in English. The required files for the record system are the same as those required for products that are processed through one of the UL laboratories in the United States.

Specifics of the on-site investigations for all of the facilities may be found in the On-Site Review Reports (Surveys), Exhibits 2B and 2C. Interested persons are invited to review these reports.

UL also maintains offices in Atlanta, Baltimore, Boston, Dallas, Minneapolis, Portland, Norman (OK), and Seattle. Staff at these locations provide engineering services to clients in their geographical area, and report directly to one of the five domestic offices where their work is reviewed.

Internal Controls (Quality Assurance)

The UL Quality Assurance (QA) Program is documented in a number of manuals that address various functions. There is not a single overall document called a QA Manual which alone defines the corporate QA policy. The Engineering Department Manual (EDM) has many of the elements normally associated with a QA Manual and provides general corporate direction. Some of the elements that are addressed are: work definitions, costing guidelines, agreement forms, files, test waiving, follow-up services policy, client-agent relations, products in foreign countries, and confidentiality. This document is presently under revision. A program for continuous quality improvement is in place. The Q-Plus program utilizes an employee team concept for continuous quality improvement.

The Laboratory Operations Manual (LOM) outlines the laboratory quality program and establishes minimum guidelines for such functions as development of forms, data requirements, equipment maintenance and calibration, report reviewing, auditing, identification of applicable tests, and corrective action procedures. The LOM also establishes policies for test standards, test equipment, qualified personnel, laboratory procedures and documentation, and self-monitoring and self- improvement.

The Follow-Up Services (FUS) Manual provides guidance for field inspectors who monitor product manufacturing under the applicant's FUS Agreement. This Manual provides the day-to-day operational guidance for inspection personnel. Other major departments utilize their own manuals for providing day-to-day direction.

For the purpose of consistent application of requirements in the standards, a program is in place which provides the controls and flexibility for developing and interpreting standards. Each location has a designated engineer who is responsible for the interpretations for a particular standard. One engineer is the primary designated engineer, and is responsible for the coordination of all other designated engineers as well as insuring the consistency of all interpretations.

Relative to the NRTL program, the Engineering Department and Laboratory Operations manuals are the main documents in the UL organization. The LOM is considered as corporate policy and its purpose is to provide a framework for procedures and controls to assure that the requisite degrees of accuracy are achieved.


UL operates a variety of services and organizational programs. Some of the programs have been in effect for decades, and have provided the test and evaluation data for products that have been approved and are still being supplied by manufacturers for introduction into the workplaces of the United States.

The following programs have been examined and found to be acceptable to OSHA on the basis of the procedures and specific criteria as detailed in 60 FR 12980, March 9, 1995, pertaining to the types of programs and procedures that NRTLs may engage in under the OSHA/NRTL program. See Exhibits 2C and 2C(1), concerning the survey and acceptance of the Camas, Washington facility, dated March 10, 1995, which also review and recommend inclusion of the following programs on the basis of their conformance to the programs described in 60 FR 12980, March 9, 1995, "Nationally Recognized Testing Laboratories; Clarification of the Types of Programs and Procedures" (Exhibit 8).

Basic Program

This program is one in which UL performs all of the necessary product testing and evaluation in-house prior to issuing a certification.

Witnessed Test Data Program

This program involves the use of UL Technical Personnel at a manufacturer's test site to witness testing for products that will be listed by UL. The manufacturer's facilities used for this purpose are qualified by the UL engineering department. The follow-up program is the normal one for that product and manufacturer (Ex. 2B, Santa Clara Report, Section 11).

Client Agent Program (CAP)

This program qualifies intermediaries that interface between UL and the client. This usually involves overseas clients utilizing US based agents. This program qualifies the intermediaries in administrative areas, technical areas, or in a combination of both. An intermediary that is qualified in the technical areas can perform testing on behalf of the client. The Client Agent Program does not prohibit an agent from providing technical advice on modifications to the product in order to meet the requirements of the standard. However, the CAP program is not intended to qualify agents in providing technical advice to clients. Administratively qualified intermediaries provide documentation, drawing, and translation support for the client.

China National Import and Export Commodities Inspection Corporation (CCIC) Inspection Program

The CCIC is a Chinese government organization that is retained by the UL Inspection Services to perform follow-up inspections in China. This inspection program is under the oversight control of UL personnel through the Hong Kong facility, and the International Inspection Services Department (Ex. 2b, Melville Report, Sections 8 & 13).

National Certification Body (NCB)

Underwriters Laboratories is one of five NRTLs that are participants in the International Electrotechnical Commission (IEC) Certification Body (CB) Scheme. This is an international program that allows laboratories accredited as Certified Bodies to exchange test reports with each other during the process of certifying products. The IEC has allowed NRTLs to participate in this Scheme because they have been accredited by OSHA. The IEC requires governmental oversight for participants.

Client Test Data Program (CTDP)

This program is the most extensively used and the basic program that involves client participation. This program involves the systematic qualification of the client by reviewing their laboratory, environmental controls, testing instrumentation, electrical power system, the client personnel involved in the program, the access to the latest UL standards, mutual testing, confidence building and the correlation of the testing packages with UL test results. Specific test information is required to be submitted and UL performs verification testing at intervals not known by the participant. There is no change in surveillance conducted by UL's follow-up services. There is an additional review conducted by UL engineering personnel that is conducted at least yearly to assess the participant's continued capability to be in the program. (See Ex. 2B, Research Triangle Park and Santa Clara Reports, Section 11).

Compliance Management and Product Assurance Program (COMPASS)

This program is a voluntary process that allows qualified manufacturers that have successfully utilized the CTDP Program to perform limited self evaluation and testing within specified categories.

For minor changes to already listed products, the client reviews the changes and performs any needed tests, and continues to use the listing mark. The client submits the documentation to UL for review. If the product does not comply, the manufacturer is required to remove the UL marks. This procedure for handling minor changes was designed to handle the real life situations, such as a purchasing department electing to purchase an alternate switch. Rather than wait for a variation notice to be issued by UL's follow-up services representative, this path serves to keep the client and UL in close contact between inspections. Minor changes are defined as modifications which involve the use of an alternate or optional component in a previously accepted product. An example is the substitution of a comparable switch from a different manufacturer, or the change of horsepower of a motor.

For major changes or new products the client must submit a sample and all documentation to UL for review. Depending upon the situation, UL may determine that the nature of the change and experience with the client and testing associated are such that additional verification testing is not necessary. In this situation, UL will authorize the use of the listing mark.

UL may determine that immediate verification testing is not needed. In this situation, the authorization to use the Listing mark is given but verification testing is conducted later. In all cases, verification testing is conducted for new products. In all situations where verification testing is needed, if correlation does not exist, the listing marks must be removed.

The follow-up program and engineering department audits are the same as with CTDP, and an additional audit of the client's quality system is performed. Both CTDP and COMPASS involve UL making a determination of the compliance of the product with the standard at some point in the process. (See Ex. 2B, Research Triangle Park and Santa Clara Reports, Section 11).

Total Certification Program (TCP)

This program parallels the manufacturer and UL in a combined evaluation of products. This is in contrast to the sequential process that is used under the COMPASS program where the manufacturer tests and evaluates and then submits the information to UL.

The program involves the testing and evaluation of a product by the manufacturer, and also the manufacturer's determination of compliance with a standard. The manufacturer is subject to continuous involvement with UL throughout the design and production of the product. UL conducts regular audits throughout the process including verification testing. Similar to the COMPASS program, the manufacturer must qualify for this program by demonstrating the ability to test and evaluate a product and it must have a viable quality assurance program, in addition to having the personnel and equipment to provide creditable results. In all cases, it is UL who authorizes the use of the listing mark. The manufacturer is audited four times a year by the UL engineering staff, and twice a year the manufacturer's quality assurance program is reviewed. Follow-up inspectors continue to conduct follow-ups.

Audit Structure

Corporate level audits are performed yearly while site or operational audits are performed semi-annually. Many of the documented audit programs are relatively new and a long term historical record does not exist. UL has an audit schedule listing for 1993 and 1994 that has been followed, and addresses various operating units of the organization.


Underwriters Laboratories Inc. desires recognition for testing and certification of products when tested for compliance with the following test standards, which are appropriate within the meaning of 29 CFR 1910.7(c):

ANSI Z21.1b -- Household Cooking Gas Appliances

ANSI Z21.5.1 -- Gas ClothesDryers -- Type 1

ANSI Z21.5.2 -- Gas Clothes Dryers -- Type 2

ANSI Z21.10.1 -- GasWater Heaters -- Automatic Storage Type Water Heaters with Inputs of 70,000 BtuPer Hour or Less

ANSI Z21.10.2 -- Water Heaters -- Sidearm Type Water Heaters

ANSI Z21.10.3 -- Water Heaters -- Circulating Tank, Instantaneous and LargeAutomatic Storage Type Water Heaters

ANSI Z21.11.1 -- Gas-Fired RoomHeaters -- Vented Room Heaters

ANSI Z21.11.2 -- Gas-Fired Room Heaters -- UniventedRoom Heaters

ANSI Z21.12 -- Listing Requirements for Draft Hoods

ANSIZ21.13 -- Gas-Fired Low-Pressure Steam and Hot Water Heating Boilers

ANSIZ21.14 -- Approval Requirements for Industrial Gas Boilers

ANSIZ21.15 -- Manually Operated Gas Valves

ANSI Z21.16 -- Gas Unit Heaters

ANSIZ21.17 -- Domestic Gas Conversion Burners

ANSI Z21.18 -- Gas Appliance PressureRegulators

ANSI Z21.19 -- Refrigerators Using Gas Fuel

ANSI Z21.20 -- AutomaticGas Ignition Systems and Components

ANSI Z21.21 -- Automatic Valves for GasAppliances

ANSI Z21.22 -- Relief Valves and Automatic Gas Shutoff Devices forHot Water Supply System

ANSI Z21.23 -- Gas Appliance Thermostats

ANSIZ21.29 -- Listing Requirements for Furnace Temperature Limit Controls and FanControls

ANSI Z21.35 -- Gas Filters on Appliances

ANSI Z21.37 -- ApprovalRequirements for Dual Oven Type Combination Gas Ranges

ANSIZ21.40.1 -- Gas-Fired Absorption Summer Air Conditioning Appliances

ANSIZ21.41 -- Quick-Disconnect Devices for Use with Gas Fuel

ANSI Z21.42 -- Gas-FiredIlluminating Appliances

ANSI Z21.44 -- Gas-Fired Gravity and Fan Type DirectVent Wall Furnaces

ANSI Z21.45 -- Flexible Connectors of Other Than All-MetalConstruction for Gas Appliances

ANSI Z21.47 -- Gas-Fired Gravity and Forced AirCentral Furnaces

ANSI Z21.48 -- Gas-Fired Gravity and Fan Type Floor Furnaces

ANSI Z21.49 -- Gas-Fired Gravity and Fan Type Vented Wall Furnaces

ANSIZ21.53 -- Gas-Fired Heavy Duty Forced Air Heaters

ANSI Z21.54 -- Gas HoseConnectors for Portable Outdoor Gas-Fired Appliances

ANSI Z21.55 -- Gas-FiredSauna Heaters

ANSI Z21.56 -- Gas-Fired Pool Heaters

ANSI Z21.58 -- OutdoorCooking Gas Appliances

ANSI Z21.61 -- Gas-Fired Toilets

ANSI Z21.64 -- DirectVent Central Furnaces

ANSI Z21.66 -- Automatic Vent Damper Devices for Use WithGas-Fired Appliances

ANSI Z21.69 -- Connectors for Movable Gas Appliances

ANSIZ21.74 -- Portable Refrigerators for Use With HD-5 Propane Gas

ANSIZ21.76 -- Gas-Fired Unvented Catalytic Room Heaters for Use With LiquefiedPetroleum (LP) Gases

ANSI Z83.3 -- Gas Utilization Equipment in Large Boilers

ANSI Z83.4 -- Direct Gas-Fired Make-Up Air Heaters

ANSI Z83.6 -- Gas-FiredInfrared Heaters

ANSI Z83.8 -- Gas Unit Heaters

ANSI Z83.9 -- Gas-Fired DuctFurnaces

ANSI Z83.10 -- Separated Combustion System Central Furnaces

ANSIZ83.11 -- Gas Food Service Equipment -- Ranges and Unit Broilers

ANSI Z83.12 -- GasFood Service Equipment -- Baking and Roasting Ovens

ANSI Z83.13 -- Gas FoodService Equipment -- Deep Fat Fryers

ANSI Z83.14 -- Gas Food ServiceEquipment -- Counter Appliances

ANSI Z83.15 -- Gas Food ServiceEquipment -- Kettles, Steam Cookers, and Steam Generators

ANSIZ83.16 -- Gas-Fired Unvented Commercial and Industrial Heaters

ANSIZ83.17 -- Direct Gas Fired Door Heaters

ANSI Z83.18 -- Direct Gas FiredIndustrial Air Heaters

ANSI/UL 1 -- Flexible Metal Conduit

ANSI/UL 3 -- FlexibleNonmetallic Tubing for Electric Wiring

ANSI/UL 4 -- Armored Cable

ANSI/UL5 -- Surface Metal Raceways and Fittings

UL 6 -- Rigid Metal Conduit

ANSI/UL8 -- Foam Fire Extinguishers

ANSI/UL 9 -- Fire Tests of Window Assemblies

ANSI/UL10A -- Tin-Clad Fire Doors

ANSI/UL 10B -- Fire Tests of Door Assemblies

UL13 -- Power-Limited Circuit Cables

ANSI/UL 14B -- Sliding Hardware for Standard,Horizontally Mounted Tin-Clad Fire Doors

ANSI/UL 14C -- Swinging Hardware for Standard Tin-Clad FireDoors Mounted Singly or In Pairs

ANSI/UL 17 -- Vent or Chimney ConnectorDampers for Oil-Fired Appliances

ANSI/UL 20 -- General-Use Snap Switches

ANSI/UL 21 -- LP-Gas Hose

ANSI/UL 22 -- Amusement and Gaming Machines

ANSI/UL25 -- Meters for Flammable and Combustible Liquids and LP-Gas

ANSI/UL 30 -- MetalSafety Cans

ANSI/UL 33 -- Heat Responsive Links for Fire-Protection Service

UL38 -- Manually Actuated Signalling Boxes for Use With Fire ProtectiveSignalling Systems

ANSI/UL 44 -- Rubber-Insulated Wires and Cables

ANSI/UL45 -- Portable Electric Tools

ANSI/UL 48 -- Electric Signs

ANSI/UL 50 -- Enclosuresfor Electrical Equipment

ANSI/UL 51 -- Power-Operated Pumps for AnhydrousAmmonia and LP-Gas

ANSI/UL 58 -- Steel Underground Tanks for Flammable andCombustible Liquids

ANSI/UL 62 -- Flexible Cord and Fixture Wire

ANSI/UL65 -- Electric Wired Cabinets

ANSI/UL 67 -- Electric Panelboards

ANSI/UL69 -- Electric Fence Controllers

ANSI/UL 73 -- Electric-Motor-Operated Appliances

ANSI/UL 79 -- Power-Operated Pumps for Petroleum Product Dispensing Systems

ANSI/UL 80 -- Steel Inside Tanks for Oil Burner Fuel

ANSI/UL 82 -- ElectricGardening Appliances

ANSI/UL 83 -- Thermoplastic-Insulated Wires and Cables

ANSI/UL 87 -- Power-Operated Dispensing Devices for Petroleum Products

ANSI/UL92 -- Fire Extinguisher and Booster Hose

ANSI/UL 94 -- Tests for Flammability ofPlastic Materials for Parts in Devices and Appliances

ANSI/UL 96 -- LightningProtection Components UL 98 -- Enclosed and Dead-Front Switches

UL104 -- Elevator Door Locking Devices and Contacts

UL 109 -- Tube Fittings forFlammable and Combustible Fluids, Refrigeration Service, and Marine Use

ANSI/UL 122 -- Photographic Equipment

ANSI/UL 123 -- Oxy-Fuel Gas Torches

UL125 -- Valves for Anhydrous Ammonia and LP-Gas (Other Than Safety Relief)

ANSI/UL 130 -- Electric Heating Pads

UL 132 -- Safety Relief Valves for AnhydrousAmmonia and LP-Gas

UL 141 -- Garment Finishing Appliances

ANSI/UL 142 -- SteelAboveground Tanks for Flammable and Combustible Liquids

ANSI/UL 144 -- PressureRegulating Valves for LP-Gas

ANSI/UL 147 -- LP- and MPS-Gas Torches

UL147A -- Nonrefillable (Disposable) Type Fuel Gas Cylinder Assemblies

UL147B -- Nonrefillable (Disposable) Type Metal Container Assemblies for Butane

ANSI/UL 150 -- Antenna Rotators

ANSI/UL 153 -- Portable Electric Lamps

ANSI/UL154 -- Carbon Dioxide Fire Extinguishers

UL 155 -- Tests for Fire Resistance ofVault and File Room Doors

UL 162 -- Foam Equipment and Liquid Concentrates

ANSI/UL 174 -- Household Electric Storage-Tank Water Heaters

ANSI/UL180 -- Liquid-Level Indicating Gauges and Tank-Filling Signals for PetroleumProducts

UL 181 -- Factory-Made Air Ducts and Air Connectors

ANSI/UL183 -- Manufactures Wiring Systems

ANSI/UL 187 -- X-Ray Equipment

ANSI/UL193 -- Alarm Valves for Fire-Protection Service

UL 194 -- Gasketed Joints forDuctile-Iron Pipe and Fittings for Fire Protection Service

ANSI/UL197 -- Commercial Electric Cooking Appliances

ANSI/UL 198B -- Class H Fuses

ANSI/UL 198C -- High-Interrupting-Capacity Fuses, Current Limiting Type

ANSI/UL198D -- High-Interrupting-Capacity Class K Fuses

ANSI/UL 198E -- Class R Fuses

ANSI/UL 198F -- Plug Fuses

ANSI/UL 198G -- Fuse for Supplementary OvercurrentProtection

ANSI/UL 198H -- Class T Fuses

ANSI/UL 198L -- DC Fuses for IndustrialUse

ANSI/UL 199 -- Automatic Sprinklers for Fire-Protection Service

ANSI/UL203 -- Pipe Hanger Equipment for Fire-Protection Service

ANSI/UL207 -- Nonelectrical Refrigerant Containing Components and Accessories

ANSI/UL209 -- Cellular Metal Floor Electrical Raceways and Fittings

UL 213 -- RubberGasketed Fittings for Fire-Protection Service

ANSI/UL 217 -- Single andMultiple Station Smoke Detectors

ANSI/UL 224 -- Extruded Insulating Tubing UL228 -- Door Closers-Holders, and Integral Smoke Detectors

ANSI/UL244A -- Solid-State Controls for Appliances

ANSI/UL 250 -- HouseholdRefrigerators and Freezers

ANSI/UL 252 -- Compressed Gas Regulators

UL 260 -- DryPipe and Deluge Valves for Fire-Protection Service

UL 262 -- Gate Valves forFire-Protection Service

ANSI/UL 268 -- Smoke Detectors for Fire ProtectiveSignalling Systems

ANSI/UL 268A -- Smoke Detectors for Duct Application

ANSI/UL291 -- Automated Teller Systems

ANSI/UL 294 -- Access Control System Units

ANSI/UL 296 -- Oil Burners

UL 296A -- Waste Oil-Burning Air-Heating Appliances

UL297 -- Portable Medium-Pressure Acetylene Generators

ANSI/UL 298 -- PortableElectric Hand Lamps

ANSI/UL 299 -- Dry Chemical Fire Extinguishers

ANSI/UL303 -- Refrigeration and Air-Conditioning Condensing and Compressor Units

UL305 -- Panic Hardware

ANSI/UL 310 -- Electrical Quick-Connect Terminals

ANSI/UL312 -- Check Valves for Fire-Protection Service

ANSI/UL 325 -- Door, Drapery,Gate, Louver, and Window Operators and Systems

UL 330 -- Gasoline Hose

ANSI/UL331 -- Strainers for Flammable Fluids and Anhydrous Ammonia

ANSI/UL 343 -- Pumpsof Oil-Burning Appliances

ANSI/UL 346 -- Waterflow Indicators for FireProtective Signaling Systems

ANSI/UL 347 -- High-Voltage Industrial ControlEquipment

ANSI/UL 351 -- Electrical Rosettes

ANSI/UL 353 -- Limit Controls

ANSI/UL 355 -- Electric Cord Reels

ANSI/UL 360 -- Liquid Tight Flexible SteelConduit

ANSI/UL 363 -- Knife Switches

ANSI/UL 365 -- Police Station ConnectedBurglar Alarm Units and Systems

ANSI/UL 372 -- Primary Safety Controls for Gas-and Oil-Fired Appliances

UL 378 -- Draft Equipment

ANSI/UL 385 -- Play Pipes forWater Supply Testing in Fire Protection Service

ANSI/UL 393 -- IndicatingPressure Gauges for Fire Protection Service

ANSI/UL 399 -- Drinking-WaterCoolers

UL 404 -- Gauges, Indicating Pressure, for Compressed Gas Service

UL407 -- Manifolds for Compressed Gases

UL 408 -- Stationary Medium PressureAcetylene Generators

UL 409 -- Stationary Low-Pressure Acetylene Generators

ANSI/UL 412 -- Refrigeration Unit Coolers

ANSI/UL 414 -- Electrical Meter Sockets

UL 416 -- Refrigerated Medical Equipment

ANSI/UL 427 -- Refrigerating Units

ANSI/UL 429 -- Electrically Operated Valves

ANSI/UL 430 -- Electric WasteDisposers

ANSI/UL 443 -- Steel Auxiliary Tanks for Oil-Burner Fuel UL444 -- Communications Cables

ANSI/UL 448 -- Pumps for FIre Protection Service

ANSI/UL 452 -- Antenna Discharge Units

ANSI/UL 464 -- Audible Signal Appliances

ANSI/UL 465 -- Central Cooling Air Conditioners

ANSI/UL 466 -- Electric Scales

ANSI/UL 467 -- Electrical Grounding and Bonding Equipment

ANSI/UL 469 -- MusicalInstruments and Accessories

ANSI/UL 471 -- Commercial Refrigerators andFreezers

ANSI/UL 474 -- Dehumidifiers

ANSI/UL 482 -- Portable Sun/Heat Lamps

ANSI/UL 484 -- Room Air Conditioners

ANSI/UL 486A -- Wire Connectors andSoldering Lugs for Use With Copper Conductors

ANSI/UL 486B -- Wire Connectorsfor Use With Aluminum Conductors

ANSI/UL 486C -- Splicing Wire Connectors

ANSI/UL 486D -- Insulated Wire Connectors for Use With Underground Conductors

ANSI/UL 486E -- Equipment Wiring Terminals for Use With Aluminum and/or CopperConductors

ANSI/UL 489 -- Molded-Case Circuit Breakers and Circuit-BreakerEnclosures

ANSI/UL 493 -- Thermoplastic-Insulated Underground Feeder andBranch-Circuit Cables

ANSI/UL 495 -- Power-Operated Dispensing Devices for LP-Gas

ANSI/UL 496 -- Edison-Base Lampholders

ANSI/UL 497 -- Protectors forCommunication Circuits

UL 497A -- Secondary Protectors for CommunicationCircuits

ANSI/UL 497B -- Protectors for Data Communication and Fire AlarmCircuits

ANSI/UL 498 -- Attachment Plugs and Receptacles

ANSI/UL 499 -- ElectricHeating Appliances

ANSI/UL 506 -- Specialty Transformers

ANSI/UL 507 -- ElectricFans

ANSI/UL 508 -- Electric Industrial Control Equipment

ANSI/UL510 -- Insulating Tape

ANSI/UL 511 -- Porcelain Electrical Cleats, Knobs, andTubes

ANSI/UL 512 -- Fuseholders

ANSI/UL 514A -- Metallic Outlet Boxes,Electrical

ANSI/UL 514B -- Fittings for Conduit and Outlet Boxes

ANSI/UL514C -- Nonmetallic Outlet Boxes, Flush-Device Boxes and Covers

ANSI/UL519 -- Impedance-Protected Motors

ANSI/UL 521 -- Heat Detectors for FireProtective Signaling Systems

ANSI/UL 525 -- Flame Arresters for Use on Vents ofStorage Tanks for Petroleum Oil and Gasoline

ANSI/UL 539 -- Single and MultipleStation Heat Detectors

ANSI/UL 541 -- Refrigerated Vending Machines

ANSI/UL542 -- Lampholders, Starters, and Starter Holders for Fluorescent Lamps

ANSI/UL543 -- Impregnated-Fiber Electrical Conduit

UL 544 -- Electric Medical and DentalEquipment

ANSI/UL 547 -- Thermal Protectors for Electric Motors

ANSI/UL551 -- Transformer-Type Arc-Welding Machines

ANSI/UL 555 -- Fire Dampers

UL555S -- Leakage Rated Dampers for Use in Smoke Control Systems

ANSI/UL558 -- Industrial Trucks, Internal Combustion Engine-Powered

ANSI/UL 559 -- HeatPumps

ANSI/UL 560 -- Electric Home-Laundry Equipment

ANSI/UL 561 -- FloorFinishing Machines

ANSI/UL 563 -- Ice Makers

UL 565 -- Liquid Level Gauges andIndicators for Anhydrous Ammonia and LP-Gas

ANSI/UL 567 -- Pipe Connectors forFlammable and Combustible Liquids and LP-Gas

ANSI/UL 569 -- Pigtails andFlexible Hoses

ANSI/UL 574 -- Electric Oil Heater

ANSI/UL 603 -- Power Suppliesfor Use With Burglar-Alarm Systems

ANSI/UL 609 -- Local Burglar-Alarm Units andSystems

ANSI/UL 611 -- Central-Station Burglar-Alarm Systems

ANSI/UL 621 -- IceCream Makers

ANSI/UL 626 -- 2 1/2 Gallon Stored Pressure Water Type FireExtinguishers

ANSI/UL 632 -- Electrically Actuated Transmitters

ANSI/UL634 -- Connectors and Switches for Use With Burglar-Alarm Systems

ANSI/UL636 -- Holdup Alarm Units and Systems

ANSI/UL 639 -- Intrusion-Detection Units

ANSI/UL 644-Container Assemblies for LP-Gas

ANSI/UL 651 -- Schedule 40 and 80Rigid PVC Conduit

ANSI/UL 651A -- Type EB and A Rigid PVC Conduit and HDPEConduit UL 664 -- Commercial (Class IV) Electric Dry-Cleaning Machines

ANSI/UL674 -- Electric Motors and Generators for Use in Hazardous (Classified)Locations

ANSI/UL 676 -- Underwater Lighting Fixtures

ANSI/UL 680 -- EmergencyVault Ventilators and Vault Ventilating Parts

ANSI/UL 681 -- Installation andClassification of Mercantile and Bank Burglar-Alarm Systems

ANSI/UL696 -- Electric Toys

ANSI/UL 697 -- Toy Transformers

ANSI/UL 698 -- IdustrialControl Equipment for Use in Hazardous (Classified) Locations

ANSI/UL705 -- Power Ventilators

UL 710 -- Grease Extractors for Exhaust Ducts

ANSI/UL711 -- Rating and Fire Testing of Fire Extinguishers

ANSI/UL 719 -- NonmetallicSheathed Cables

ANSI/UL 726 -- Oil-Fired Boiler Assemblies

ANSI/UL727 -- Oil-Fired Central Furnaces

ANSI/UL 729 -- Oil-Fired Floor Furnaces

ANSI/UL 730 -- Oil-Fired Wall Furnaces

ANSI/UL 731 -- Oil-Fired Unit Heaters

ANSI/UL732 -- Oil-Fired Water Heaters

UL 733 -- Oil-Fired Air Heaters and Direct-FiredHeaters

ANSI/UL 746A -- Polymeric Materials -- Short Term Property Evaluations

ANSI/UL 746B -- Polymeric Materials -- Long Term Property Evaluations

ANSI/UL746C -- Polymeric Materials -- Use in Electrical Equipment Evaluations

ANSI/UL746E -- Polymeric Materials -- Industrial Laminates, Filament Wound Tubing,Vulcanized Fibre, and Materials Used in Printed Wiring Boards

ANSI/UL749 -- Household Dishwashers

ANSI/UL 751 -- Vending Machines

ANSI/UL 753 -- AlarmAccessories for Automatic Water-Supply Control Valves for Fire-ProtectionService

ANSI/UL 756 -- Coin and Currency Changers and Actuators

UL763 -- Motor-Operated Commercial Food Preparing Machines

ANSI/UL 773 -- Plug-InLocking Type Photocontrols for Use With Area Lighting

ANSI/UL773A -- Nonindustrial Photoelectric Switches for Lighting Control

UL775 -- Graphic Arts Equipment

ANSI/UL 778 -- Motor-Operated Water Pumps

ANSI/UL781 -- Portable Electric Lighting Units for Use in Hazardous (Classified)Locations

ANSI/UL 783 -- Electric Flashlights and Lanterns for Use in HazardousLocations, Class I, Group C and D

UL 795 -- Commercial-Industrial Gas-HeatingEquipment

ANSI/UL 796 -- Printed-Wiring Boards

ANSI/UL 797 -- Electrical MetallicTubing

UL 810 -- Capacitors

ANSI/UL 813 -- Commercial Audio Equipment

ANSI/UL814 -- Gas-Tube-Sign and Ignition Cable

ANSI/UL 817 -- Cord Sets and Power-SupplyCords

ANSI/UL 823 -- Electric Heaters for Use in Hazardous (Classified)Locations

ANSI/UL 826 -- Household Electric Clocks

ANSI/UL 827 -- CentralStations for Watchman, Fire-Alarm, and Supervisory Services

ANSI/UL834 -- Heating, Water Supply, and Power Boilers -- Electric

UL 842 -- Valves forFlammable Fluids

ANSI/UL 844 -- Electric Lighting Fixtures for Use in Hazardous(Classified) Locations

ANSI/UL 845 -- Electric Motor Control Centers

ANSI/UL854 -- Service Entrance Cable

ANSI/UL 857 -- Electric Busways and AssociatedFittings

ANSI/UL 858 -- Household Electric Ranges

UL 858A -- Safety-RelatedSolid-State Controls for Electric Ranges

ANSI/UL 859 -- Personal GroomingAppliance

UL 860 -- Pipe Unions for Flammable and Combustible Fluids and FireProtection Service

ANSI/UL 863 -- Electric Time-Indicating and -RecordingAppliances

ANSI/UL 864 -- Control Units for Fire-Protective Signaling Systems

ANSI/UL 867 -- Electrostatic Air Cleaners

ANSI/UL 869 -- Electrical ServiceEquipment

ANSI/UL 869A -- Reference Standard for Service Equipment

ANSI/UL870 -- Wireways, Auxiliary Gutters, and Associated Fittings

ANSI/UL873 -- Electrical Temperature-Indicating and -Regulating Equipment

ANSI/UL875 -- Electric Dry Bath Heaters

ANSI/UL 877 -- Circuit Breakers andCircuit-Breaker Enclosure for Use in Hazardous (Classified) Locations

ANSI/UL879 -- Electrode Receptacles for Gas-Tube Signs

ANSI/UL 883 -- Fan-Coil Units andRoom-Fan Heater Units

ANSI/UL 884 -- Underfloor Electrical Raceways andFittings

ANSI/UL 886 -- Electrical Outlet Boxes and Fittings for Use inHazardous (Classified) Locations

ANSI/UL 887 -- Delayed-Action Timelocks

ANSI/UL 891 -- Dead-Front Electrical Switchboards

ANSI/UL 894 -- Switches for Usein Hazardous (Classified) Locations

ANSI/UL 900 -- Test Performance ofAir-Filter Units

ANSI/UL 910 -- Test Method for Fire and Smoke Characteristicsof Electrical and Optical-Fiber Cables

ANSI/UL 913 -- Intrinsically SafeApparatus and Associated Apparatus for Use in Class I, II, and III, DivisionI, Hazardous (Classified) Locations

ANSI/UL 916 -- Energy Management Equipment

ANSI/UL 917 -- Clock-Operated Switches

ANSI/UL 921 -- Commercial ElectricDishwashers

ANSI/UL 923 -- Microwave Cooking Appliances

ANSI/UL 924 -- EmergencyLighting and Power Equipment

ANSI/UL 935 -- Fluorescent-Lamp Ballasts

ANSI/UL943 -- Ground-Fault Circuit Interrupters

ANSI/UL 961 -- Hobby and SportsEquipment

ANSI/UL 964 -- Electrically Heating Bedding

ANSI/UL 969 -- Marking andLabeling Systems

ANSI/UL 977 -- Fused Power-Circuit Devices

ANSI/UL982 -- Motor-Operated Food Preparing Machines

ANSI/UL 983 -- Surveillance Cameras

ANSI/UL 984 -- Hermetric Refrigerant Motor-Compressors

ANSI/UL 987 -- Statutoryand Fixed Electric Tools

UL 991 -- Tests for Safety-Related Controls EmployingSolid-State Devices

ANSI/UL 998 -- Humidifiers

ANSI/UL 1002 -- ElectricallyOperated Valve for Use in Hazardous (Classified) Locations

ANSI/UL1004 -- Electric Motors

ANSI/UL 1005 -- Electric Flatirons

ANSI/UL1008 -- Automatic Transfer Switches

ANSI/UL 1010 -- Receptable-Plug Combinationsfor Use in Hazardous (Classified) Locations

ANSI/UL 1012 -- Power Supplies

ANSI/UL 1017 -- Electric Vacuum Cleaning Machines and Blower Cleaners

ANSI/UL1018 -- Electric Aquarium Equipment

ANSI/UL 1020 -- Therman Cutoffs for Use inElectrical Appliances and Components

UL 1022 -- Line Isolated Monitors

ANSI/UL1025 -- Electric Air Heaters

ANSI/UL 1026 -- Electric Household Cooking andFood-Serving Appliances

ANSI/UL 1028 -- Electric Hair-Clipping and -ShavingAppliances

ANSI/UL 1029 -- High-Intensity Discharge Lamp Ballasts

ANSI/UL1030 -- Sheathed Heater Elements

ANSI/UL 1034 -- Burglary Resistant ElectricLocking Mechanisms

ANSI/UL 1037 -- Antitheft Alarms and Devices

ANSI/UL1042 -- Electric Baseboard Heating Equipment

UL 1047 -- Isolated Power SystemsEquipment

ANSI/UL 1053 -- Ground-Fault Sensing and Relaying Equipment

ANSI/UL1054 -- Special-Use Switches

ANSI/UL 1058 -- Halogenated Agent ExtinguishingSystem Units

UL 1059 -- Terminal Blocks

ANSI/UL 1062 -- Unit Substations

ANSI/UL1063 -- Machine-Tool Wires and Cables

UL 1066 -- Low-Voltage AC and DC PowerCircuit Breakers Used in Enclosures

ANSI/UL 1069 -- Hospital Signaling andNurse Call Equipment

ANSI/UL 1072 -- Medium Voltage Power Cables

ANSI/UL1076 -- Proprietary Burglar-Alarm Units and Systems

ANSI/UL 1077 -- SupplementaryProtectors for Use in Electrical Equipment

ANSI/UL 1081 -- Electric SwimmingPool Pumps, Filters and Chlorinators

ANSI/UL 1082 -- Household Electric CoffeeMakers and Brewing-Type Appliances

ANSI/UL 1083 -- Household Electric Skilletsand Frying-Type Appliances

ANSI/UL 1086 -- Household Trash Compactors

ANSI/UL1087 -- Molded-Case Switches

ANSI/UL 1088 -- Temporary Lighting Strings

ANSI/UL1090 -- Electric Snow Movers

ANSI/UL 1091 -- Butterfly Valves for Fire ProtectionService

ANSI/UL 1093 -- Halogenated Agent Fire Extinguishers

ANSI/UL1096 -- Electric Central Air-Heating Equipment

ANSI/UL 1097 -- Double InsulationSystems for Use in Electrical Equipment

ANSI/UL 1203 -- Explosion-Proof andDust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified)Locations

UL 1206 -- Electric Commercial Clothes-Washing Equipment

ANSI/UL1207 -- Sewage Pumps for Use in Hazardous (Classified) Locations

ANSI/UL1230 -- Amateur Movie Lights UL 1236 -- Electric Battery Chargers

ANSI/UL1238 -- Control Equipment for Use With Flammable Liquid Dispensing Devices

UL1240 -- Electric Commercial Clothes-Drying Equipment

ANSI/UL 1241 -- JunctionBoxes for Swimming Pool Lighting Fixtures

ANSI/UL 1242 -- Intermediate MetalConduit

UL 1244 -- Electrical and Electronic Measuring and Testing Equipment

UL1254 -- Pre-Engineered Dry Chemical Extinguishing System Units

ANSI/UL1261 -- Electric Water Heaters for Pools and Tubs

ANSI/UL 1262 -- LaboratoryEquipment

UL 1270 -- Radio Receivers, Audio Systems, and Accessories

ANSI/UL1277 -- Electrical Power and Control Tray Cables With Optional Optical-FiberMembers

UL 1278 -- Movable and Wall- or Ceiling-Hung Electric Room Heaters

ANSI/UL 1283 -- Electromagnetic-Interference Filter

ANSI/UL 1286 -- OfficeFurnishings

ANSI/UL 1310 -- Direct Plug-In Transformer Units

ANSI/UL1313 -- Nonmetallic Safety Cans for Petroleum Products

ANSI/UL1314 -- Special-Purpose Containers

ANSI/UL 1316 -- Glass-Fiber-Reinforced PlasticUnderground Storage Tanks for Petroleum Products

ANSI/UL 1322 -- FabricatedScaffold Planks and Stages

UL 1323 -- Scaffold Hoists

ANSI/UL 1332 -- OrganicCoatings for Steel Enclosures for Outdoor Use Electrical Equipment

ANSI/UL1409 -- Low-Voltage Video Products Without Cathode-Ray-Tube Displays

ANSI/UL1410 -- Television Receivers and High-Voltage Video Products

ANSI/UL1411 -- Transformers and Motor Transformers for Use in Audio-, Radio-, andTelevision-Type Appliances

ANSI/UL 1412 -- Fusing Resistors andTemperature-Limited Resistors for Radio-, and Television-Type Appliances

ANSI/UL 1413 -- High-Voltage Components for Television-Type Appliances

ANSI/UL1414 -- Across-the-Line, Antenna-Coupling, and Line-by-Pass Capacitors forRadio- and Television-Type Appliances

ANSI/UL 1416 -- Overcurrent andOvertemperature Protectors for Radio- and Television-Type Appliances

ANSI/UL1417 -- Special Fuses for Radio- and Television-Type Appliances

ANSI/UL1418 -- Implosion-Protected Cathode-Ray Tubes for Television-Type Appliances

UL1424 -- Cables for Power-Limited Fire-Protective-Signaling Circuits

ANSI/UL1429 -- Pullout Switches

ANSI/UL 1433 -- Control Centers for Changing MessageType Electric Signs

ANSI/UL 1436 -- Outlet Circuit Testers and SimilarIndicating Devices

UL 1437 -- Electrical Analog Instruments, Panelboard Types

ANSI/UL 1438 -- Household Electric Drip-Type Coffee Makers

ANSI/UL 1441 -- CoatedElectrical Sleeving

ANSI/UL 1445 -- Electric Water Bed Heaters

ANSI/UL1446 -- Systems of Insulating Materials -- General

ANSI/UL 1447 -- Electric LawnMowers

ANSI/UL 1448 -- Electric Hedge Trimmers

UL 1449 -- Transient Voltage SurgeSuppressors

ANSI/UL 1450 -- Motor-Operated Air Compressors, Vacuum Pumps andPainting Equipment

ANSI/UL 1453 -- Electric Booster and Commercial Storage TankWater Heaters

UL 1459 -- Telephone Equipment

ANSI/UL 1474 -- Adjustable DropNipples for Sprinkler Systems

ANSI/UL 1480 -- Speakers for Fire ProtectiveSignaling Systems

ANSI/UL 1481 -- Power Supplies for Fire Protective SignalingSystems

ANSI/UL 1484 -- Residential Gas Detectors

UL 1486 -- Quick OpeningDevices for Dry Pipe Valves for Fire-Protection Service

UL 1492 -- Audio andVideo Equipment

ANSI/UL 1555 -- Electric Coin-Operated Clothes-WashingEquipment

ANSI/UL 1556 -- Electric Coin-Operated Clothes-Drying Equipment

ANSI/UL 1557 -- Electrically Isolated Semiconductor Devices

UL1558 -- Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear

ANSI/UL1559 -- Insect-Control Equipment, Electrocution Type

ANSI/UL 1561 -- LargeGeneral Purpose Transformers

UL 1562 -- Transformers, Distribution, DryType -- Over 600 Volts

ANSI/UL 1563 -- Electric Hot Tubes, Spas, and AssociatedEquipment

ANSI/UL 1564 -- Industrial Battery Chargers

ANSI/UL 1565 -- WirePositioning Devices

UL 1567 -- Receptacles and Switches Intended for Use WithAluminum Wire

ANSI/UL 1569 -- Metal-Clad Cables

ANSI/UL 1570 -- FluorescentLighting Fixtures

ANSI/UL 1571 -- Incandescent Lighting Fixtures

ANSI/UL1572 -- High Intensity Discharge Lighting Fixtures

ANSI/UL 1573 -- Stage andStudio Lighting Units

ANSI/UL 1574 -- Track Lighting Systems

ANSI/UL1577 -- Optical Isolators

ANSI/UL 1585 -- Class 2 and Class 3 Transformers

UL1594 -- Sewing and Cutting Machines

UL 1604 -- Electrical Equipment for Use inClass I, and II, Division 2 and Class III Hazardous (Classified) Locations

ANSI/UL 1610 -- Central-Station Burglar-Alarm Units

ANSI/UL 1624 -- LightIndustrial and Fixed Electric Tools

ANSI/UL 1635 -- Digital Burglar AlarmCommunicator System Units

ANSI/UL 1638 -- Visual Signaling Applicances

ANSI/UL1647 -- Motor-Operated Massage and Exercise Machines

UL 1660 -- Liquid-TightFlexible Nonmetallic Conduit

ANSI/UL 1662 -- Electric Chain Saws

ANSI/UL1664 -- Immersion-Detection Circuit-Interrupters

ANSI/UL 1666 -- Standard Testfor Flame Propagation Height of Electrical and Optical-Fiber Cables InstalledVertically in Shafts

UL 1673 -- Electric Space Heating Cables

UL1676 -- Discharge Path Resistors

ANSI/UL 1703 -- Flat Plate Photo Voltaic Modulesand Panels

ANSI/UL 1711 -- Amplifiers for Fire Protective Signaling Systems

ANSI/UL 1726 -- Automatic Drain Valves for Standpipe Systems

ANSI/UL1727 -- Commercial Electric Personal Grooming Appliances

UL 1738 -- VentingSystems for Gas-Burning Appliances, Categories II, III, and IV

ANSI/UL1739 -- Pilot-Operated Pressure-Control Valves for Fire-Protection Service

UL 1767 -- Early-Suppression Fast-Response Sprinklers

ANSI/UL 1769 -- Cylinder Valves

ANSI/UL 1773 -- Termination Boxes UL1776 -- High-Pressure Cleaning Machines

UL 1778 -- Uninterruptible Power Supply Equipment

ANSI/UL 1786 -- Nightlights

UL 1795 -- Hydromassage Bathtubs UL1812 -- Ducted Heat Recovery Ventilators

UL 1815 -- Nonducted Heat RecoveryVentilators

UL 1863 -- Communication Circuit Accessories

ANSI/UL1876 -- Isolating Signal and Feedback Transformers for Use in ElectronicEquipment

UL 1917 -- Solid-State Fan Speed Controls

UL 1950 -- InformationTechnology Equipment Including Electrical Business Equipment

UL 1995 -- Heatingand Cooling Equipment UL 2006 -- Halon 1211 Recovery/Recharge Equipment

UL2097 -- Reference Standard for Double Insulation Systems for Use in ElectronicEquipment

Preliminary Finding

Underwriters Laboratories Incorporated addressed all of the criteria which had to be met for recognition as an NRTL in its initial application and in its further correspondence. For example, the applicant submitted a list of its test equipment and instrumentation; a roster of its personnel including resumes of those in key positions and copies of position descriptions; a summary of its listing, labeling, and follow-up services, including examples; a statement of its independence as a testing laboratory; and a discussion of its control programs, including the Q-Plus Program and a copy of its Laboratory Operations Manual; and descriptions of its calibration system, appeals procedure, recordkeeping and operational procedures.

Nine major areas were examined in depth in carrying out the laboratory surveys: facility; test equipment; calibration program; test and evaluation procedures; test reports; records; quality assurance program; follow-up listing program; and personnel.

The discrepancies noted by the survey teams in the on-site evaluations [Ex. 2B(1)] were adequately resonded to by the applicant prior to the preparation of the survey report and are included as a integral part of the report.

With the preparation of the final survey reports of Underwriters Laboratories Incorporated, the survey team was satisfied that the testing facilities appeared to meet the necessary criteria required by the standard, and so noted in the On-Site Review Report (Survey); see Ex. 2B.

Following a review of the application file, and the on-site survey reports of the Northbrook, Illinois; Melville, New York; Research Triangle Park, North Carolina; Santa Clara, California; Camas, Washington; and the subsidiary Taipei, Taiwan, and Hong Kong facilities, the NRTL Recognition Program staff concluded that the applicant appeared to have met the requirements for renewal of its recognition as a Nationally Recognized Testing Laboratory for the above noted facilities and, therefore, recommended to the Assistant Secretary that the application be preliminarily approved.

Based upon a review of the completed application file and the recommendations of the staff, the Assistant Secretary has made a preliminary finding that the Underwriters Laboratories Incorporated facilities for which accreditation was requested can meet the requirements for recognition (Camas, WA), or renewal of recognition (all others noted above), as required by 29 CFR 1910.7.

All interested members of the public are invited to supply detailed reasons and evidence supporting or challenging the sufficiency of the applicant's having met the requirements for renewal of its recognition as a Nationally Recognized Testing Laboratory, as well as Appendix A, of 29 CFR 1910.7. Submission of pertinent written documents and exhibits shall be made no later than May 30, 1995, and must be addressed to the NRTL Recognition Program, Office of Variance Determination, Room N 3653, Occupational Safety and Health Administration, U.S. Department of Labor, 200 Constitution Avenue, NW., Washington, DC 20210. Copies of the UL application, the laboratory survey reports, and all submitted comments, as received, (Docket No. NRTL-4-93, are available for inspection and duplication at the Docket Office, Room N 2634, Occupational Safety and Health Administration, U.S. Department of Labor, at the above address.

The Assistant Secretary's final decision on whether the applicant (Underwriters Laboratories Incorporated) satisfies the requirements for renewal of its recognition as an NRTL will be made on the basis of the entire record including the public submissions an any further proceedings that the Assistant Secretary may consider appropriate in accordance with Appendix A of Section 1910.7.

Signed at Washington, DC this 22nd day of March 1995.

Joseph A. Dear,
Assistant Secretary.

[FR Doc. 95-7676 Filed 3-28-95; 8:45 am]