Effective November 17, 2003, single unit trucks 12'6" and under with no more than 3 axles and 10 tires may utilize the Grand Central Parkway between the Triborough Bridge and the Brooklyn-Queens Expressway. Tractor trailers, buses and other vehicles over 12'6" are required to exit at 31 Street/Astoria Boulevard when leaving the bridge and exit the Brooklyn-Queens Expressway at Astoria Boulevard West when traveling towards the Triborough Bridge. Regulations will be strictly enforced.