The Performance Review Institute (PRI), which oversees the Nadcap process, calls it “an industry-managed approach to conformity assessment that brings together technical experts from both industry and government to establish requirements for accreditation, accredit suppliers and define operational program requirements. In simpler terms, Nadcap is the gold standard for quality assurance in the world’s most demanding industries. Nadcap audits cover a wide variety of special processes, including heat treating, pyrometry, welding and more.