Blood alcohol concentration (BAC) for driving urgently should be lowered to 0.05.

On roadways in the USA, the highest risk of death and the highest economic costs result from alcohol-impaired driving. The National Academies of Sciences Engineering and Medicine has the stated goal, "Lowering the BAC limits set by state law is an evidence-based, poplulation-level intervention with widespread impact that could help reach a bold goal: zero deaths from drinking and driving." I provide scientific, empirical evidence from around the world that: (a) documents benefits from lowering the per se blood alcohol from 0.08% to 0.05%; and (b) I support this conclusion with a novel, graphical comparison showing logically that failing to support 0.05% BAC is based on giving priority to non-scientific criteria.