Here’s a great article on what you should know about WCAG.
Axis has a methodology for approaching compliance for websites, first you audit then you modify and document complacency with full transparency.

Council Post: WCAG Compliance: What To Know, And How To Get Started On Making Your Website Accessible To All
It’s important to understand the WCAG, why they matter and how to comply in a way that not only protects your business but also makes the world a better place for people with disabilities.