NSF International

Certification Mark for NSF

Scope of Recognition*

Standard Number Standard Title
UL 48 Electric Signs.
UL 73 Motor-Operated Appliances
UL 174 Household Electric Storage Tank Water Heaters.
UL 197 Commercial Electric Cooking Appliances
UL 399 Drinking-Water Coolers
UL 412 Refrigeration Unit Coolers.
UL 430 Waste Disposers.
UL 466 Electric Scales
UL 471 Commercial Refrigerators and Freezers
UL 499 Electric Heating Appliances.
UL 514B Fittings for Cable and Conduit
UL 514C Nonmetallic Outlet Boxes, Flush-Device Boxes and Covers
UL 514D Cover Plates for Flush-Mounted Wiring Devices
UL 541 Refrigerated Vending Machines
UL 563 Ice Makers
UL 621 Ice Cream Makers
UL 651 Schedule 40 and 80 PVC Conduit
UL 651A Type EB and A Rigid PVC Conduit and HDPE Conduit
UL 749 Household [Electric] Dishwashers
UL 751 Vending Machines
UL 763 Motor-Operated Commercial Food Preparing Machines
UL 778 Motor-Operated Water Pumps.
UL 858 Household Electric Ranges.
UL 921 Commercial Electric Dishwashers
UL 979 Water Treatment Appliances
UL 982 Motor-Operated Household Food Preparing Machines
UL 1026 Electric Household Cooking and Food Serving Appliances.
UL 1081 Swimming Pool Pumps, Filters, and Chlorinators
UL 1082 Household Electric Coffee Makers and Brewing-Type Appliances.
UL 1083 Household Electric Skillets and Frying-Type Appliances.
UL 1261 Electric Water Heaters for Pools and Tubs.
UL 1285 Pipe and Couplings, Polyvinyl Chloride (PVC), for Underground Fire Service.
UL 1453 Electric Booster and Commercial Storage Tank Water Heaters
UL 1563 Electric Spas, Equipment Assemblies, and Associated Equipment
UL 1598 Luminaires.
UL 1795 Hydromassage Bathtubs
UL 1821 Thermoplastic Sprinkler Pipe and Fittings for Fire Protection
UL 1889 Commercial Filters for Cooking Oil.
UL 1951 Electric Plumbing Accessories.
UL 2157 Electric Clothes Washing Machines and Extractors.
UL 2158 Electric Clothes Dryers.
UL 61010-1 Electrical Equipment for Measurement, Control, and Laboratory Use; Part 1: General Requirements

* For a history of effective dates and Federal Register notices of this NRTL, use the Docket Number and link referenced on this page.