The National Corrugated Steel Pipe Association (NCSPA) promotes sound public policy and education relating to the use of corrugated steel drainage systems in private and public construction. The 100-year service life of corrugated steel pipe, along with the industry’s highest recycle content, positions steel as the best choice for engineers, specifiers and contractors. Member fabricating companies of NCSPA are estimated to produce over 85% of all domestic pipe production. Associate members include mill producers, coaters and suppliers of products and services to the industry.