N.Y. Comp. Codes R. & Regs. tit. 21, § 1025.16 – Oxidizers.

(a) Oxidizers 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 oxidizers are in outside containers of 35 pounds gross weight or less, or, for contents customarily described by volume, 61/2 gallons or less. There are no restrictions on the transport of empty containers which last contained such oxidizer, provided the accompanying shipping papers show them to be empty.
(b) Oxidizers listed in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of 500 pounds gross weight; provided, however, such oxidizers are in outside containers of 50 pounds gross weight or less.
(c) Oxidizers listed in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of 2,000 pounds gross weight; provided, however, such oxidizers are in outside containers of 35 pounds gross weight or less.
(d) Oxidizers listed in section 1025.27 of this Part for reference to this subdivision are restricted to a maximum quantity per vehicle of 2,000 pounds gross weight; provided, however, such oxidizers are in outside containers of 35 pounds gross weight or less.
(e) Oxidizers listed in section 1025.27 of this Part for reference to this subdivision are not restricted, regardless of quantity or size of containers.
(f) Any material listed in section 1025.27 of this Part and referenced to this subdivision may or may not be an oxidizer. When it 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 material 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.