N.Y. Comp. Codes R. & Regs. tit. 21, § 1025.11 – Corrosive materials.

(a) Corrosive materials listed in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of one gallon or 20 pounds gross weight. There are no restrictions on the transport of empty containers which last contained such corrosive material; provided, however, accompanying shipping papers show them to be empty.
(b) Corrosive materials listed in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of 100 pounds gross weight; provided, however, such liquid is in cylinders of 20 pounds gross weight or less. There are no restrictions on the transport of empty containers which last contained such corrosive material, provided the accompanying shipping papers show them to be empty.
(c) Corrosive materials listed in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of 6 ½ gallons or 100 pounds gross weight. There are no restrictions on the transport of empty containers which last contained such corrosive material, provided the accompanying shipping papers show them to be empty.
(d) Bromotoluene, alpha (benzyl bromide) is restricted to a maximum quantity per vehicle of 60 gallons or 1,000 pounds gross weight; provided, however, the content of each inside glass container is not more than five pints. There are no restrictions on the transport of empty containers which last contained bromotoluene, alpha (benzyl bromide), provided the accompanying shipping papers show them to be empty.
(e) Iodine monochloride is restricted to a maximum quantity per vehicle of 60 gallons or 1,000 pounds gross weight; provided, however, such liquid is packed in wooden boxes with inside containers not over one quart capacity each, or with stone or earthenware jugs not over one gallon capacity each. There are no restrictions on the transport of empty containers which last contained iodine monochloride, provided the accompanying shipping papers show them to be empty.
(f) Corrosive materials listed in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of 60 gallons or 1,000 pounds gross weight; provided, however, the content of each container is 15 gallons capacity or less. When it is known that said article contains less than 10 percent free mineral acid, or free caustic or other liquids having similar effect, and the shipping paper is noted accordingly, it is allowed passage without quantity restriction when the container size is 16 ounces or less; otherwise, the quantity is not to exceed 5,000 pounds gross weight per vehicle, regardless of the size of the container, or not to exceed 2,500 pounds net weight in a tank vehicle. There are no restrictions on the passage of empty tank vehicles^* or the transport of empty containers which last contained such corrosive liquid, provided the accompanying shipping papers show them to be empty.
(g) Corrosive materials listed in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of 120 gallons or 2,000 pounds gross weight; provided, however, the contents of each container is 15 gallons capacity or less. When it is known that said article contains less than 10 percent free mineral acid, or free caustic or other liquids having similar effect, and the shipping paper is noted accordingly, it is allowed passage without quantity restriction when the container size is 16 ounces or less; otherwise, the quantity is not to exceed 5,000 pounds gross weight per vehicle, regardless of the size of container, or not to exceed 2,500 pounds net weight in a tank vehicle. There are no restrictions on the passage of empty tank vehicles^* or the transport of empty containers which last contained such corrosive liquid, provided the accompanying shipping papers show them to be empty.
(h) Corrosive materials in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of 2,500 pounds gross weight, regardless of size of container, or 2,500 pounds net weight in a tank vehicle. When it is known that said article contains less than 10 percent free mineral acid, or free caustic or other liquids having similar effect and the shipping paper is noted accordingly, it is allowed passage without quantity restriction when the container size is 16 ounces or less; otherwise, the quantity is not to exceed 5,000 pounds gross weight per vehicle, regardless of the size of container, or not to exceed 2,500 pounds net weight in a tank vehicle. There are no restrictions on the passage of empty tank vehicles ^* or the transport of empty containers which last contained such corrosive liquid, provided the accompanying shipping papers show them to be empty.
(i) Corrosive materials listed in section 1025.27 of this Part for reference to this subdivision are not restricted, regardless of quantity or size of containers, or when in tank vehicles.
(j) Any commodity listed in section 1025.27 of this Part for reference to this subdivision may or may not be a corrosive material. When such commodity is not identified by the prescribed U.S.D.O.T. caution label for hazardous materials—and is known not to meet the description of a hazardous material—the article is allowed passage, provided the shipping order, bill of lading or other shipping paper shows the following certification:
This shipment conforms to Triborough Bridge and Tunnel Authority rules for the transportation of explosives and other hazardous materials via the Queens Midtown Tunnel, the Brooklyn-Battery Tunnel and the Verrazano-Narrows Bridge Lower Level.