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Established in 1949, the American Concrete Pressure Pipe Association (ACPPA) is a leading nonprofit trade organization representing global manufacturers of concrete pressure pipes. ACPPA is dedicated to promoting and advancing the use of concrete pressure pipes in water and wastewater applications through research projects, educational programs, and the management of an independent audit program. The audit program certifies compliance with all relevant American Water Works Association (AWWA) standards for the design and manufacture of concrete pressure pipes.