SEAT BELTS REQUIRED? by Henry Tatnall...

SEAT BELTS REQUIRED? by Henry Tatnall (Dorrance Publishing: $9.95; 118 pp., paperback original). Driving regulations differ surprisingly in the 50 states and the District of Columbia: Speed limits range from 65 to 25 m.p.h., and the amount of alcohol in the blood stream that constitutes D.U.I. varies from .05% to .15% (.02% for those under 18 in Vermont). In Alaska, big-game animals killed or wounded in vehicular collisions become the property of the state; backing up on a Interstate Highway is illegal in Minnesota, as is playing a sound system loud enough to be heard 50 feet away in Oregon. Tatnall’s modest guide offers anyone planning a cross-country drive an easy way to avoid tickets.