Resources
- American Concrete Institute (ACI)
- American Concrete Pipe Association
- American Public Works Association
- American Society for Testing and Materials (ASTM)
- Architectural Precast Association
- Concrete Reinforcing Steel Institute
- Massachusetts Department of Environmental Protection (DEP)
- National Precast Concrete Association (NPCA)
- National Ready Mixed Concrete Association
- New Hampshire Department of Transportation
- Precast/Prestressed Concrete Institute (PCI)
- US Environmental Protection Agency (EPA)
- Vermont Agency of Transportation
- World of Concrete
