Credential comparison
The equipment scope is the first dividing line: pressure vessels for API 510 and in-service metallic piping for API 570.
API 510 is an individual certification for personnel involved with in-service inspection, rating, repair, and alteration of pressure vessels.
API 570 is an individual certification centered on in-service metallic piping inspection, evaluation, repair, alteration, and rerating.
Start with the job specification, employer or jurisdiction requirement, equipment or construction scope, and the credentialing body's current eligibility rules. Neither credential is universally “better.” The useful choice is the one that matches the inspections you are expected to perform and document.
