A

Air-Conditioning Contractors of America (ACCA)

All-Tex Pipe Supply

American Backflow Prevention Association (ABPA)

American Fire Sprinkler Association (AFSA)

American Gas Association (AGA)

American Institute of Architects (AIA)

American Institute of Building Design

American National Standards Institute (ANSI)

American Petroleum Institute (API)

American Society of Civil Engineers (ASCE)

American Society of Heating, Refrigeration,
and Air Conditioning Engineers (ASHRAE)

American Society of Mechanical Engineers (ASME)

American Society of Plumbing Engineers (ASPE)

American Society for Testing and Materials (ASTM)

American Supply Association (ASA)

American Water Works Association (AWWA)

Apex Supply Company

B

Building Owners and Managers Association (BOMA)

C

California Rural Water Association (CRWA)

Canadian Institute of Plumbing and Heating (CIPH)

Centex Homes

Coburns Supply

Construction Specification Institute (CSI)

Cooling Technology Institute (CTI)

Cast Iron Soil Pipe Institute (CISPI)

D

Design, Build Institute of America (DBIA)

E

Environmental Protection Agency (EPA)

Epic Supply

F

Ferguson Enterprises

G

Green Supply

H

Heating, Airconditioning & Refrigeration Distributors International (HARDI)

HD Supply

I

Institute of Refrigeration (IR)

International Association of Plumbers
& Mechanical Officials  (IAPMO)

International Code Council (ICC)

Int’l Hotel/Motel & Restaurant Association (IH/MRS)

International Organization for Standardization (ISO)

Irrigation Association