A critical piece of employment legislation, is Section 504 of the Rehabilitation Act of 1973 (PL 73-112).  Section 504 states,

"no qualified handicapped individual . . . shall, solely by reason of the handicap, be excluded from the participation in, be denied the benefits of, or be subjected to discrimination under any program or activity receiving federal financial assistance"

When PL 94-142 was passed (the "carrot law"), not all states wanted to participate in providing special education services.  It was only when the removal of all federal funding was threatened for complied, and provided special education for students with disabilities.

 THIS IS SOMETHING YOU SHOULD PUT IN YOUR OWN WORDS AND COMMIT TO MEMORY. 

The way I remember it is, 

"No otherwise qualified handicapped individual shall be denied access to any program receiving federal funding solely on the basis of her handicap."