AHRI (Air-Conditioning, Heating, and Refrigeration Institute)

AHRI Standard 310/380-2017 (SI/I-P)

Packaged Terminal Air-Conditioners and Heat Pumps

AHRI Standard 390-2021 (I-P)

Performance Rating of Single Package Vertical Air-Conditioners and Heat Pumps

AHRI Standard 430-2020 (I-P)

Performance Rating of Central Station Air-Handling Unit Supply Fan

AHRI Standard 550/590-2023 (I-P)

Performance Rating of Water-Chilling and Heat Pump Water-Heating Packages Using the Vapor Compression Cycle

AHRI Standard 551/591-2023 (SI)

Performance Rating of Water-Chilling and Heat Pump Water-Heating Packages Using the Vapor Compression Cycle

AHRI Standard 600-2023 (I-P)

Standard for Performance Rating of Water/Brine to Air Heat Pump Equipment

AHRI Standard 770-2020 (I-P)

Performance Rating of Refrigerant Pressure Regulating Valves

AHRI Standard 1160-2023 (I-P)

Performance Rating of Heat Pump Pool Heaters

AHRI Standard 1300-2013 (R2023) (I-P)

Performance Rating of Commercial Heat Pump Water Heaters

AHRI Standard 1301-2013 (R2023) (SI)

Performance Rating of Commercial Heat Pump Water Heaters


GBI (Green Building Institute)

GBI 02-2023

Green Globes Assessment Protocol for Existing Buildings


ASME (American Society of Mechanical Engineers)

ASME A13.1-2023

Scheme for the Identification of Piping Systems

ASME A17.3-2023

Safety Code for Existing Elevators and Escalators


ASSE (ASSE International Chapter of IAPMO [International Association of Plumbing & Mechanical Officials])

ASSE 1019-2023

Performance Requirements for Wall Hydrant with Backflow Protection and Freeze Resistance

ASSE 1022-2023

Performance Requirements for Backflow Preventer for Beverage Dispensing Equipment

ASSE 1024-2023

Performance Requirements for Dual Check Backflow Preventers

ASSE 1032-2023

Performance Requirements for Dual Check Valve Type Backflow Preventers for Carbonated Beverage Dispensers, Post Mix Type, and Non-Carbonated Beverage Dispensers

ASSE 1052-2023

Performance Requirements for Hose Connection Backflow Preventers

ASSE 1057-2023

Performance Requirements for Freeze Resistant Sanitary Yard Hydrants with Backflow Protection



ASSE/IAPMO 1055-2023

Performance Requirements for Chemical Dispensers with Integral Backflow Protection


CSA (CSA America Standards Inc.)/IAPMO

CSA B45.8/IAPMO Z403-2023

Terrazzo, Concrete, Composite Stone, and Natural Stone Plumbing Fixtures

CSA B45.12/IAPMO Z402-2023

Aluminum and Copper Plumbing Fixtures




Uniform Solar, Hydronics, and Geothermal Code


Uniform Swimming Pool, Spa and Hot Tub Code


Water Efficiency and Sanitation Standard

IAPMO Z601-2018 (R2024)

Scale Reduction Devices


ICC (International Code Council)

ICC 1210-2023

Standard for Mechanical, Electrical, Plumbing Systems, Energy Efficiency, and Water Conservation in Off-site Construction


NFPA (National Fire Protection Association)

NFPA 1-2024

Fire Code

NFPA 30-2024

Flammable and Combustible Liquids Code

NFPA 54-2024

National Fuel Gas Code

NFPA 58-2024

Liquefied Petroleum Gas Code

NFPA 70E®-2024

Standard for Electrical Safety in the Workplace®

NFPA 90A-2024

Standard for the Installation of Air-Conditioning and Ventilating Systems

NFPA 90B-2024

Standard for the Installation of Warm Air Heating and Air-Conditioning Systems

NFPA 99-2024

Health Care Facilities Code

NFPA 101®-2024

Life Safety Code

NFPA 220-2024

Standard on Types of Building Construction

NFPA 221-2024

Standard for High Challenge Fire Walls, Fire Walls, and Fire Barrier Walls

NFPA 497-2024

Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas

NFPA 703-2024

Standard for Fire-Retardant-Treated Wood and Fire-Retardant Coatings for Building Materials

NFPA 820-2024

Standard for Fire Protection in Wastewater Treatment and Collection Facilities

NFPA 5000®-2024

Building Construction and Safety Code


Pool and Hot Tub Alliance

APSP/ICC 3-2014 (R2023)

Standard for Permanently Installed Residential Spas and Swim Spas


ULSE (UL Standards & Engagement)

UL 174-2023

Standard for Safety for Household Electric Storage Tank Water Heaters

UL 199-2023

Standard for Safety for Automatic Sprinklers for Fire-Protection Service

UL 499-2023

Standard for Electric Heating Appliances

UL 723-2018 (R2023)

Standard for Safety for Test for Surface Burning Characteristics of Building Materials

UL 1453-2018 (R2023)

Standard for Safety for Electric Booster and Commercial Storage Tank Water Heaters

UL 2043-2023

Standard for Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces

UL 4200A-2023a

UL Standard for Safety for Products Incorporating Button Batteries or Coin Cell Batteries