A new California law imposes new and different obligations on California public and private employers for immigration worksite visits, activities and enforcement by federal government agencies. The California’s Immigrant Worker Protection Act (IWPA), which became effective Jan. 1, 2018, creates new fines for failure to comply with its obligations. To comply with the IWPA, California employers should have a government visitor policy and review and amend it; understand the law and make risk assessment before a visit by any government official; review current employee notice practices; and review and refresh its employment verification policy and process and conduct training.