CPWA is not a separate exam but a combined designation IAAP grants to professionals who have earned both the CPACC and WAS certifications, signaling both a broad conceptual grasp of disability and accessible design and the hands-on technical skill to evaluate and remediate real web content against WCAG.
Because it requires passing two distinct certification exams covering different skill sets, CPWA is generally regarded as the most complete individual accessibility credential currently available through IAAP, and it is often used as a shorthand signal of well-rounded, verified expertise when selecting an auditor or consultant.