After major demonstrations in 10 U.S. cities on April 5, including a 150-person sit-in in San Francisco led by Judith Heumann and Kitty Cone lasting 28 days, U.S. Secretary of Health, Education and Welfare Joseph Califano signs regulations implementing Section 504 of the Rehabilitation Act. These regulations extend civil rights to people with disabilities, covering any program or activity, including employment services, receiving federal financial assistance.