ST. LOUIS - The gross vehicle weight rating (GVWR) of a truck, not the actual weight, is what is to be used to determine the driver's eligibility for overtime, the Eighth Circuit U.S. Court of Appeals ruled July 31 (Birdell McCall, et al. v. Disabled American Veterans, et al., No. 12-3011, 8th Cir.; 2013 U.S. App. LEXIS 15622).