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Portable tanks — commonly referred to as nurse tanks — that are intended for farm fertilizer application and/or designed and utilized for the carriage of anhydrous ammonia will be exempt from the container specification and other Federal Regulations adopted by the state when the tank:
Portable tanks containing anhydrous ammonia must be marked with a slow-moving vehicle emblem on the rear of the unit and may not be towed in excess of 25 miles per hour on any road or highway. Shipping papers are not required to accompany the movement of portable tanks containing anhydrous ammonia when transported under these provisions. No material other than anhydrous ammonia can be carried in any portable container identified above and exempted as such from the regulations.
Intrastate Farm Operations
The transportation of an agricultural product other than a Class 2 material, over local roads between fields of the same farm, is exempted from the HMR when:
The transportation of an agricultural product to or from a farm, within 150 miles (241.40 kilometers) of the farm, is exempted from the requirements in Subparts G (Emergency Response Information) and H (Training) of 49 CFR Part 172 when:
Formulated liquid agricultural products in specification packagings of 58 gallons (220 liters) capacity, or less, with closures manifolded to a closed mixing system and equipped with positive dry disconnect devices, may be transported by a private motor carrier between a final distribution point and an ultimate point of application or for loading aboard an airplane for aerial application.
Despite requirements for specification packagings within 49 CFR Subpart F of Part 173 as well as Parts 178 and 180, a non-specification cargo tank motor vehicle that has a capacity of less than 3,500 gallons (13,250 liters) may be used by an intrastate motor carrier for transportation of a flammable liquid petroleum product in accordance with the additional requirements below.
Despite requirements for specification packagings within 49 CFR Subpart F of Part 173 as well as Parts 178 and 180, a non-specification metal tank that is permanently secured to a transport vehicle and protected against leakage or damage in the event of a turnover, that also has a capacity of less than 119 gallons (450 liters), may be used by an intrastate motor carrier for transportation of a flammable liquid petroleum product in accordance with the additional requirements below.
A packaging used under the above paragraphs must: