Several surveys in California have examined the health of subgroups of agricultural workers within a county or an otherwise limited geographic area, and some of these included physical examinations [Mines and Kearney, 1982; McCurdy et al., 1997, 2003]. Yet there is to our knowledge no previous statewide or national cross-sectional survey specifically addressing farm worker health. Nor is there much research based on objective, third-party physical examinations that also evaluates the relationship between immigration status and occupational or general health.