From the intro:
"The Job Accommodation Network (JAN) is a free service of the U.S. Department of Labor's Office of Disability Employment Policy. JAN consultants have been providing job accommodation information since 1983 when JAN was founded. In addition, JAN consultants have been providing information about the Americans with Disabilities Act (ADA) since 1992 when the ADA went into effect. Over the years, JAN consultants have developed practical ideas to help employees understand the ADA and request and negotiate reasonable accommodations in the workplace. The Employees' Practical Guide to Requesting and Negotiating Reasonable Accommodations under the Americans with Disabilities Act is a summary of some of the most frequent issues that employees have regarding accommodations and the ADA and JAN's practical ideas for resolving them. As new information is available or new issues develop, the Guide will be updated to reflect the changes. If you have an issue that is not addressed in the Guide or if you want to discuss an issue in more detail, please contact JAN."