In 1975, Mink attended the World Conference on Women held in Mexico City from mid-June to early July. Together with Abzug and Representative Margaret Heckler of Massachusetts, she pledged to sponsor and support legislation for a U.S. women's conference for the United States Bicentennial. When they returned home, Abzug introduced HR 9924, co-sponsored by Mink and others, which granted $5 million in total taxpayer contributions ($ in dollars) for both state and National Women's Conferences. It was signed into law by President Ford. Later that year, an effort was made to exempt school athletics from the provisions of Title IX via the Casey Amendment. The Amendment proposed allowing schools to determine whether they would provide equal funding for men's and women's sporting activities. The exemption was struck from the Senate version of the appropriations bill. In the House, though Mink had lobbied heavily against the amendment to the appropriations bill (H.R. 5901), immediately before the vote was called she left the chamber, having received an emergency message that her daughter had been in a serious car accident in New York. In a 211 against and 212 for vote, the appropriation bill passed with the Casey Amendment intact. Upon her return from New York, Speaker Carl Albert of Oklahoma and other members of the House called for a revote due to the circumstances. July 17 members revoted and with 215 in favor to 178 against, the Casey Amendment was rejected; so protecting the anti-discrimination provisions of Title IX.