Accessibility refers to the design of products, devices, services, or environments for people who have disabilities. The goal of accessibility is to ensure that people with disabilities can use and benefit from these products, devices, services, and environments. This can include making sure that websites and mobile apps are usable by people with visual or motor impairments, or that physical spaces are navigable for people who use wheelchairs or have other mobility issues. Accessibility is often regulated by laws and standards, such as the Americans with Disabilities Act (ADA) in the United States and the Web Content Accessibility Guidelines (WCAG) for web content.