WCAG is an abbreviation for the “Web Content Accessibility Guidelines”. WCAG is the baseline website compliance specification for ADA, Canadian, and overseas countries Accessibility laws. WCAG outlined three levels of compliance; Level A, AA, and AAA. Most laws practically call for WCAG Level AA.
Do-it-yourself Compliance is where the website owner organization audits and remediates their website content, design, and web code to bring it into WCAG Level AA compliance without or without independent audits. Without an independent, audit by experienced audit professionals, there will be a doubt as to whether the website has reached full compliance.
Compliance: in this context, is conformity to the WCAG Level AA Guidelines. “This website is in full or partial compliance with the WCAG Level AA Guidelines.”
Certification, in this context, means an independent audit and verification of the WGAC Level AA compliance. “This website is certified to be compliant with WGAC Level AA guidelines.”
Remediate: provide a remedy for, redress or make right. In Accessibility projects, it is the correction of identified accessibility flaws in the website content, design, and/or web code.