Plumbing

• American Society of Plumbing Engineers
  
• Green Mechanical Council
  
• Copper Development Association
• International Code Council
• Intn'l Association of Plumbing and Mechanical Officials
• Kitchen/Bath Industry Show & Conference
• Mechanical Contractors Association of America
• 5 STAR Careers
• Plumbing-Heating-Cooling Contractors - National Association
• Plumbing Manufacturers Institute
• Water Quality Association
• Brazos Valley Chapter of the ICC

• Contracting Business
• Air Conditioning Contractors of America
• Air-Conditioning and Refrigeration Institute
• American Society of Heating, Refrigerating and Air-Conditioning Engineers
• Sheet Metal and Air Conditioning Contractors' National Association

Fire Protection

• American Fire Sprinkler Association
• National Fire Protection Association
• National Fire Sprinkler Association
• United States Fire Administration

Software

Other

• Associated Builders and Contractors
• Associated General Contractors
• Gas Research Institute
• National Association of Oil Heating Service Managers (NAOHSM)
• National Association of the Remodeling Industry
• National Association of Professional Engineers
• North American Technician Excellence
• Radiant Panel Association
• National Association of Heavy Equipment Training Schools

• Department of Energy
• Department of Labor
• Environmental Protection Agency
• Occupational Safety and Health Administration
• Thomas - Legislative Information on the Internet

• Emergency Plumber

• American National Standards Institute
• Consumer Product Safety Commission
• Energy Star home page
• International Organization for Standardization (ISO)
• National Institute of Standards and Technology
• National Labor Relations Board
• Supreme Court home page
• Underwriters Laboratories

• AFL-CIO
• Laborers International Union of North America
• Sheet Metal Workers International Association
• United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada