What it is
A CPT certification built around NASM's OPT training model, sold as study bundles from self-study up to guided packages, ending in a proctored exam.
Best for
New trainers who need a credential employers and insurers recognise, and established ones who need continuing education credits.
Watch out for
The bundles differ mainly in support and retake policy, not in the certification you end up holding — buy the cheapest one you will actually finish. Recognition varies by country; confirm it is accepted where you intend to work.