Agricultural work is hazardous for all workers, but migrant farm workers are especially vulnerable. Because their status in Canada hinges on their employment, they live under the shadow of a particular kind of job insecurity, one that may compromise their right to workplace health and safety and to workers' compensation. In this plenary, Theresa Aversa examines OHS vulnerability among migrant workers under two different programs: the Seasonal Agricultural Worker Program (SAWP) and the Temporary Foreign Workers Program. She shares findings from her research, drawn primarily from interviews with advocates and system stakeholders, and from participant observation at advocate-organized events. She also discusses what the findings suggest as possible avenues to improved health and safety of migrant workers.