California’s A.B. 450, the “Immigrant Worker Protection Act,” took effect on Jan. 1, 2018, imposing strict new obligations on all California employers during immigration enforcement actions and when receiving a Notice of Inspection (NOI) from U.S. Immigration and Customs Enforcement (ICE) regarding I-9 forms and other employment records. Employers should pay close attention to their new obligations under A.B. 450, particularly as ICE has signaled that it will be responding to this new law with increased raids and inspections at California workplaces. Joint guidance on A.B. 450 recently issued by the California Division of Labor Standards Enforcement (DLSE) and the California attorney general, as well as a notice template from the DLSE, should assist employers with their compliance efforts.