There are federal and state laws that prohibit employers (private, sate and local governments, employment agencies and labor unions) from discriminating against individuals with qualified disabilities. Discrimination covers the following areas: hiring, firing, advancement, compensation, job training and other terms, conditions, and privileges of employment.
These rights are outlined in the following two federal laws: the Americans with Disabilities Act and the Rehabilitation Act of 1973.

The Americans with Disabilities Act (ADA)

The ADA prohibits discrimination on the basis of disability in employment, State and local government, public accommodations, commercial facilities, transportation, and telecommunications. It also applies to the United States Congress.

Rehabilitation Act of 1973

The Rehabilitation Act prohibits discrimination on the basis of disability in programs conducted by Federal agencies, in programs receiving Federal financial assistance, in Federal employment, and in the employment practices of Federal contractors. The standards for determining employment discrimination under the Rehabilitation Act are the same as those used in title I of the Americans with Disabilities Act.

Detailed information is available from the federal government website: http://www.disabilityinfo.gov

Another source of information is http://www.ldonline.org; click on LD Topics on the home page, view the listing then click on Adults with LD, next Top Articles, from this list choose The Americans with Disability Act.