API 510 vs API 570 — Pressure Vessel vs Piping Inspector Certification

API 510 certifies authorised pressure vessel inspectors; API 570 certifies authorised piping inspectors. Both are issued by the American Petroleum Institute Individual Certification Program (ICP). This comparison covers scope of work, exam structure, $730 examination fee, work-experience prerequisites, $85K-$140K salary range, and whether holding both certifications is worth the time.