API funds and conducts research related to many aspects of the petroleum industry. The association's chief functions on behalf of the industry include advocacy and negotiation with governmental, legal, and regulatory agencies research into economic, toxicological, and environmental effects establishment and certification of industry standards and education outreach. Our work helps the industry invent and manufacture superior products consistently, provide critical services, ensure fairness in the marketplace for businesses and consumers alike, and promotes the acceptance of products and practices globally. Since 1924, the API has been a cornerstone in establishing and maintaining standards for the worldwide oil and natural gas industry. And they avoid having to reinvent the wheel every time a product is manufactured. They help speed acceptance and bring products to market quicker. API Standards enhance the safety of industry operations, assure quality, help keep costs down, reduce waste, and minimize confusion. The American Petroleum Institute traces its beginning to World War I, when Congress and the domestic oil and natural gas industry worked together to help the war effort. It represents about 400 corporations involved in production, refinement, distribution, and many other aspects of the petroleum industry. The American Petroleum Institute (API) is the only national trade association that represents all aspects of America's oil and natural gas industry. Geoff Barker IEng.,MEI., in The Engineer's Guide to Plant Layout and Piping Design for the Oil and Gas Industries, 2018 API Piping material, process terms, and piping codes