The ADA has a three-part definition of "disability." This definition taken from the Rehabilitation Act reflects the specific types of discrimination experienced by people with disabilities. Accordingly, it is not the same as the definition of disability in other laws, such as state workers' compensation laws or other federal or state laws that provide benefits for people with disabilities and disabled veterans.
For information regarding documentation of disability see Enforcement Guidance: Reasonable Accommodation and Undue Hardship under the Americans with Disabilities Act, specifically questions 6, 7, 8.
This site may link to materials developed by federal agencies and/or their grantees. Several of the links provided will take you to external websites.The content and materials on this tool is property of the Great Lakes ADA center. This tool was develop under NIDILRR grant #90DP0091-01-00.