Founded in 1937, the Society of the Plastics Industry, Inc. is the trade association representing one of the largest manufacturing industries in the United States. SPI's 1,500 members represent the entire plastics industry supply chain, including processors, machinery and equipment manufacturers and raw material suppliers. The U.S. plastics industry employs more than 1.5 million workers and provides more than $330 billion in annual shipments.

• See also:
• Masterformat 1995
• United States