The health needs of the approximately three million migrant and seasonal farmworkers and their families are clearly among the greatest needs of any population group in the country. In 1962 the Migrant Health Act became the first legislation intended to address some of the health needs of migrants. By 1976 Migrant Health Centers had served 415,000 migrant and seasonal farmworkers and had provided primary health services, supplemental health services, referrals, hospitalization, and payment for these services. The centers also provide environmental health services. The program annually supports 92 projects, 35 of which are the health centers. Almost all of the high migrant impact areas have been penetrated by the program. Some obstacles hinder program effectiveness. Most states view the problem of migrants as a federal problem and assume little or no responsibility for migrant health care. Many health services are located far from migrant camps and transportation is a problem. Migrant health project teams may be prevented from entering a camp without the permission of the grower. Inadequate funding is the greatest problem of all. In 1976 it was estimated that providing a minimal level of primary care would require $61 million; $30 million was appropriated for the program. Recommendations to upgrade and expand health facilities and programs for migrant workers conclude this report. (DS)