API 653 is the standard for tanks over 50 feet tall or having a diameter greater than 30 feet. Covers the maintenance, inspection, alteration, and repair of steel, field-erected aboveground storage tanks (ASTs) built to API 650 or API 12C standards. API 653 Plant Inspection must be performed by a licensed inspector.

“In/Out-service Inspection, Rating, Repair, and Alteration,” details requirements for maintaining the integrity of pressure vessels.

API 510 inspections must be performed by a licensed inspector.

In-service Inspection, Rating, Repair, and Alternation of Piping Systems,” provides similar requirements applicable to metallic and fiberglass reinforced plastic (FRP) piping.

This inspection includes basic elements for developing, implementing, and maintaining a credible risk-based inspection (RBI) program.