executive order mandating odd-even gas rationing beginning Friday at 6 a.m. Drivers whose license plates end with a letter or odd number may only buy gas on odd-numbered days. Drivers whose license plates end in an even number or zero may only buy gas on even-numbered days. "This is not a step we take lightly," says Bloomberg. "But given gas shortages and the growing frustrations of New Yorkers, we believe it's the right step." Commercial vehicles, emergency vehicles, buses and paratransit vehicles are among those vehicles exempt to the rule. NYPD officers will be deployed at gas stations as long as the policy is in place. Hess ExpressGas Buddy