The anticipated decision by the U.S. Court of Appeals for the Ninth Circuit in Teamsters v. FMCSA dealing with federal preemption of California meal and rest breaks for motor carriers, highlighted in a previous Transportation Blog on Jan. 12, 2020, 1 was more imminent than was suspected. In its decision issued on Jan. 15, 2021, the Ninth Circuit rejected the Teamsters challenge to the Federal Motor Carrier Safety Administration's (FMCSA) authority and upheld the FMCSA's order that California's meal and rest break rules (MRB rules) were preempted by the FMCSA Hours of Service Rules (HOS rules) as they applied to drivers of property-carrying commercial motor vehicles. See California's Meal and Rest Break Rules for Commercial Motor Vehicle Drivers, Petition for Determination of Preemption, FMCSA Docket No. 2018-0304, 83 FR 67470 (Dec. 28, 2018).