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Directorate of Science, Technology and Medicine
Nationally Recognized Testing Laboratorys (NRTL) |
| Specific References to OSHA Standards Requiring NRTL Approval |
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NOTE: Only one reference is generally cited for each type of product that requires NRTL approval. References may not necessarily reflect the exact current text of cited provision. Approval by an NRTL is denoted in various ways, such as by use of the words approved, listed, labeled, or even designation to a test standard.
1910.28 - Safety Requirements for Scaffolding
28(f)(2) - The (masons' adjustable multiple-point suspension) scaffold shall be provided with hoisting machines that meet the requirements of a nationally recognized testing laboratory.
28(g)(3) - When hoisting machines are used on two-point suspension scaffolds, such machines shall be of a design tested and approved by a nationally recognized testing laboratory.
28(h)(2) - The hoisting machine and its supports (of a stone setters' adjustable multiple-point suspension scaffold) shall be of a type tested and listed by a nationally recognized testing laboratory.
28(i)(1) - The scaffolding, including power units or manually operated units (of a single-point adjustable suspension scaffold), shall be of a type tested and listed by a nationally recognized testing laboratory.
1910.36 - Design and construction requirements for exit routes
36(a)(3) - Each fire door, including its frame and hardware, must be listed or approved by a nationally recognized testing laboratory.
1910.66 - Powered Platforms for Building Maintenance
66(f)(8)(i) - Electrical wiring and equipment shall comply with Subpart S of this Part, except as otherwise required by this section.
1910.106 - Flammable and Combustible Liquids
106(b)(2)(iv)(f) - Tanks and pressure vessels storing class IB and IC liquids shall have venting device or approved flame arresters.
106(b)(4)(iv)(d) - Each opening for manual gaging in a tank installed inside a building shall have a check valve or other approved device.
106(d)(4)(i) - Openings to inside storage rooms (for containers and portable storage) shall have approved self-closing fire doors.
106(d)(7)(ii) - When provided, sprinklers shall be approved.
106(f)(8) - The design of fire-control devices (small hose, portable fire extinguishers) to be in accordance with approved engineering standards.
106(g)(3)(ii) - Approved dispensing units at automotive service stations may be located inside of buildings. The dispensing area to be provided with approved mechanical or gravity ventilation system. When dispensing units are below grade, approved mechanical ventilation to be used, and dispensing area protected by approved automatic sprinkler system.
106(g)(3)(iv)(c) - Class I liquids to be dispensed by approved pumps taking suction through top of container or approved self-closing faucets.
106(g)(3)(vi)(a) - Dispensers for Class I liquids to have listed manual or automatic-closing type hose nozzle valves.
106(g)(3)(vi)(b) - Automatic-closing type valves may be used in conjunction with an approved latch-open device.
106(g)(4)(i)(b) - Dispensing at marine service stations to be by approved dispensing units w/wo integral pumps.
106(g)(9) - Each service station to have fire extinguisher with approved classification of 6 B, C.
106(h)(4)(ii)(b) - Approved flexible connectors (piping, valves, and fittings) may be used (in processing plants). Approved hose may be used at transfer stations.
106(h)(6)(i) - Approved portable fire extinguishers of appropriate size, type, and number to be provided.
106(h)(6)(ii)(d) - Approved automatic sprinkler system or equivalent extinguishing system may be used. If special extinguishing system (e.g., foam, CO2, dry chemical) is provided, approved equipment shall be used. . .
1910.107 - Spray Finishing Using Flammable and Combustible Materials
107(b)(5)(vi) - Clean filters or filter to have combustibility not in excess of class 2 filters as listed by UL.
107(e)(3) - Approved portable tanks or approved safety cans to be used for handling flammable or combustible liquids.
107(h)(2) - Fixed electrostatic apparatus and devices used with coating operations to be approved types.
107(h)(12) - All spraying areas to have automatic sprinklers or other approved automatic extinguishing equipment (fixed CO2 or dry chemical system).
107(i)(3) - Electrostatic hand spray apparatus and devices to be approved.
107(l)(7)(i) - Electrostatic fluidized beds and associated equipment to be approved.
1910.108 - Dip Tanks Containing Flammable or Combustible Liquids
108(g) - Areas in vicinity of dip tanks to have approved manual fire extinguishers suitable for flammable and combustible liquid fires.
108(h)(1)(vii) - The drain valve of the dip tank to be operated automatically with approved heat actuated devices.
1910.109 - Explosives and Blasting Agents
109(d)(2)(iii)(a) - Each motor vehicle for transporting explosives to have.. .(approved) extinguishers having a rating of at least 10 B C.
1910.110 - Storage and Handling of Liquefied Petroleum Gases
110(b)(2)(i) - Each system using DOT containers to have approved container valves, connectors, manifold valve assemblies, and regulators.
110(b)(2)(ii) - Each system. . .using containers of 2000 gals. or less water capacity. . . shall consist of a container assembly and one or more regulators, and may include other parts. The system as a unit or the container assembly as a unit, and the regulator or regulators, to be individually listed.
110(b)(2)(iii) - In systems using containers of over 2000 gals. water capacity, each regulator, container valve, excess flow valve, gaging device, and relief valve on or at the container to be listed.
110(b)(20)(i) - . . .new commercial and industrial gas consuming appliances shall be approved.
110(b)(20)(iii) - Unattended heaters used inside buildings for the purpose of animal or poultry production to be equipped with an approved device designed to shut off the flow of gas to the main burners, and pilot if used, in the event of flame extinguishment.
110(c)(5)(i)(g)(1) - (With cylinder systems used inside of buildings) hose and hose connections to be listed.
110(c)(5)(i)(h) - Portable heaters, including salamanders, to be equipped with an approved automatic device to shut off the flow of gas to the main burner, and pilot if used, in the event of flame extinguishment.
110(d)(3)(iii) - (With systems using non-DOT containers) all openings in a container to be equipped with automatic excess flow valves, with some exceptions.:
110(d)(3)(iv) - An excess flow valve is not required in the withdrawal service line providing the following are complied with, among which is:
110(d)(3)(iv)(e) - An approved pressure-reducing regulator is directly attached to the outlet of the shutoff valve . . .
110(d)(3)(viii) - Containers of 125 gals. water capacity. . .to be provided with an approved device for liquid evacuation. . .
110(d)(7)(x) - (With permanently installed, interconnected containers) where flexible connections are used they shall be approved.
110(d)(7)(xi) - Container assemblies listed for interchangeable installation above or under ground. . .
110(e)(5)(ii) - (With LPG as a motor fuel) the filling connection shall be fitted with an approved double back-pressure check valve. . .
110(e)(5)(iii) - . . .filling connections equipped with approved automatic back-pressure check valves, and safety relief valves, all connections to containers. . .shall be equipped with approved automatic excess flow valves. .
110(e)(5)(iv)(e)(1) - (With removable fuel containers) . . .an approved automatic quick-closing coupling. . .
110(e)(9)(i) - Approved automatic pressure reducing equipment shall be installed. . .
110(e)(9)(ii) - An approved automatic shutoff valve shall be provided. .
110(f)(5)(iv) - Each opening from (special) storage rooms to other parts of the building shall be protected by a (listed) 11/2 hour (B) fire door. . .
1910.111 - Storage and Handling of Anhydrous Ammonia
111(b)(1) - Each appurtenance to be approved. . .
111(a)(2)(i) - "Appurtenances"--All devices such as pumps, compressors, safety relief devices, liquid-level gaging devices, valves and pressure gages.]
1910.157 - Portable Fire Extinguishers
157(c)(2) - Only approved portable fire extinguishers shall be used to meet the requirements of this section.
1910.159 - Automatic Sprinkler Systems
159(c)(1)(ii) - Only approved equipment and devices to be used in the design and installation of automatic sprinkler systems used to comply with this standard.
159(c)(8)(i) - Only approved sprinklers are used on systems.
1910.160 - Fixed Extinguishing Systems, General
160(a)(1) - This section applies to all fixed extinguishing systems. . .except automatic sprinkler systems.
160(b)(1) - Fixed extinguishing system components and agents to be designed and approved for use on the specific fire hazards they are expected to control or extinguish.
160(b)(13) - Automatic detection equipment to be approved. . .in accordance with 1910.164 - Fire Detection Systems.
160(c)(4) - The employer shall provide automatic actuation of total flooding systems by means of an approved fire detection device installed and interconnected with a pre-discharge employee alarm system to give employees time to safely exit from the discharge area prior to system discharge.
1910.161 - Fixed Extinguishing Systems, Dry Chemical
161(a) - This section applies to all fixed extinguishing systems using dry chemical as the extinguishing agent, installed to meet a particular OSHA standard. These systems to also comply with 1910.160 - Fixed Extinguishing Systems, General.
1910.162 - Fixed Extinguishing Systems, Gaseous Agent
162(a)(1) - This section applies to all fixed extinguishing systems using a gas as an extinguishing agent, installed to meet a particular OSHA standard. These systems to also comply with 1910.160.
162(b)(1) - (All gaseous extinguishing) agents used for initial supply and replenishment to be of the type approved for the system's application.
1910.163 - Fixed Extinguishing Systems, Water Spray and Foam
163(a) - This section applies to all fixed extinguishing systems using water or foam solution, installed to meet a particular OSHA standard. These systems to also comply with 1910.60.
1910.164 - Fire Detection Systems
164(a) - Section applies to all automatic fire detection systems installed to meet the requirements of a particular OSHA standard.
164(b) - All (fire detection) devices and equipment to be approved for the purpose for which they are intended.
1910.165 - Employee Alarm Systems
165(c)(1) - The employer shall assure that all devices, components, combinations of devices or systems constructed and installed to comply with this standard are approved. Steam whistles, air horns, strobe lights or similar lighting devices, or tactile devices meeting the requirements of this section are considered to meet requirement for approval.
1910.178 - Powered Industrial Trucks
178(a)(3) - Approved trucks shall bear a label or some other identifying mark indicating approval by the testing laboratory.
178(a)(7) - . . ."approved truck" or "approved industrial truck" means a truck that is listed or approved for fire safety purposes for the intended use by an NRTL.
178(d) - Power-operated industrial trucks originally approved for use of gasoline, when converted to LPG, may be used in those locations where certain type trucks have been previously specified.
178(m)(11) - Only approved industrial trucks shall be used in hazardous locations.
178(q)(12) - Industrial trucks originally approved for gasoline fuel may be converted to LPG fuel. . .Such conversion equipment shall be approved.
1910.180 - Crawler Locomotive and Truck Cranes
180(i)(4)(i) - Refueling with small portable containers to be done with an approved safety type can equipped with an automatic closing cap and flame arrester.
1910.181 - Derricks
181(j)(4)(i) - Refueling. . .with approved safety type containers equipped with automatic closing cap and flame arrester.
1910.253 - Oxygen-Fuel Gas Welding and Cutting
253(a)(2) - Under no condition shall acetylene be. . .piped (except in approved cylinder manifolds). . .
253(a)(3) - Only approved apparatus such as torches, regulators or pressure-reducing valves, acetylene generators and manifolds shall be used.
253(c)(1)(i) - Manifolds (fuel gas) shall be approved either separately for each component part or as an assembled unit.
253(c)(1)(v) - High-pressure fuel gas manifolds to be provided with approved pressure-regulating devices.
253(c)(2)(i) - Manifolds (oxygen) shall be approved either separately for each component part or as an assembled unit.
253(c)(2)(vi) - High-pressure oxygen manifolds to be provided with approved pressure-regulating devices.
253(c)(4)(v) - Portable outlet headers for fuel-gas service to be provided with an approved hydraulic back-pressure valve. . .unless an approved pressure-reducing regulator, an approved back-flow check valve, or an approved hydraulic back-pressure valve is installed at each outlet.
253(c)(5)(11) - All manifolds and parts used in methods of manifolding to be used only for the gas or gases for which they are approved.
253(c)(5)(iii) - When acetylene cylinders are coupled, approved flash arresters shall be installed between the cylinder and the coupler block.
253(e)(1) - Equipment shall be installed and used only in the service for which it is approved. . .
253(e)(3)(ii) - Approved protective equipment. . .
253(e)(3)(ii)(c)(2) - Backflow protection to be provided by an approved device that will prevent O2 from flowing into the fuel system or the reverse.
253(e)(3)(ii)(c)(3) - Flash-back protection shall be provided by an approved device that will prevent flame from passing into the fuel-gas system.
253(e)(3)(ii)(c)(4) - Back-pressure protection to be provided by an approved pressure-relief device. . .
253(f)(2)(i) - The total hourly output of a generator not to exceed rate for which it is approved and marked.
253(f)(4)(i)(e) - Unless otherwise specifically approved, generators shall not be fitted with continuous drain connections leading to sewers. . .
253(f)(4)(iv)(a) - The compressor or booster system to be of an approved type.
253(f)(5)(i)(a) - All portable generators to be of a type approved for portable use.
253(f)(6)(i)(i) - Windows in partitions shall be wired glass and approved metal frames with fixed sash.
1910.265 - Sawmills
265(d)(2)(iv)(c) - Boat fuel to be transported and stored in approved safety containers.
265(i) - The requirements of Subpart L of this part to be complied with in providing the necessary fire protection for sawmills.
1910.266 - Pulpwood Logging
266(c)(4)(iii) - An approved fire extinguisher to be provided at locations where machines are operating and/or on each vehicle.
266(c)(4)(iv) - Fuel to be stored only in approved well-marked containers. . .
1910.303 - General Requirements
303(a) Approval. The conductors or equipment required or permitted by this subpart shall be acceptable only if approved.
1910.307 - Hazardous (classified) locations
307(b) Electrical installations. Equipment, wiring methods, and installations of equipment in hazardous (classified) locations shall be intrinsically safe, approved for the hazardous (classified) location, or safe for the hazardous (classified) location.
307(b)(1) Intrinsically safe. Equipment and associated wiring approved as intrinsically safe shall be permitted in any hazardous (classified) location for which it is approved.
Note: With respect to 1910.303 and 1910.307, the definition of "Acceptable" under 29 CFR 1910.399 specifies, with few exceptions, that conductors and equipment must be approved only by "nationally recognized testing laboratories." Similar definitions apply to the other sections that require approval.
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