Transfer Procedures [49 CFR 193.2513]

(A)A. Each transfer of LNG or other hazardous fluid must be conducted in accordance with one or more manuals of written procedures to provide for safe transfers. [49 CFR 193.2513(a)]#

(B)B. The transfer procedures must include provisions for personnel to:#

(1)1. before transfer, verify that the transfer system is ready for use, with connections and controls in proper positions, including if the system could contain a combustible mixture, verifying that it has been adequately purged in accordance with a procedure which meets the requirements of "Purging Principles and Practices (incorporated by reference, see §6713)"; [49 CFR 193.2513(b)(1)]#

(2)2. before transfer, verify that each receiving container or tank vehicle does not contain any substance that would be incompatible with the incoming fluid and that there is sufficient capacity available to receive the amount of fluid to be transferred; [49 CFR 193.2513(b)(2)]#

(3)3. before transfer, verify the maximum filling volume of each receiving container or tank vehicle to ensure that expansion of the incoming fluid due to warming will not result in overfilling or overpressure; [49 CFR 193.2513(b)(3)]#

(4)4. when making bulk transfer of LNG into a partially filled (excluding cooldown heel) container, determine any differences in temperature or specific gravity between the LNG being transferred and the LNG already in the container and, if necessary, provide a means to prevent rollover due to stratification; [49 CFR 193.2513(b)(4)]#

(5)5. verify that the transfer operations are proceeding within design conditions and that overpressure or overfilling does not occur by monitoring applicable flow rates, liquid levels, and vapor returns; [49 CFR 193.2513(b)(5)]#

(6)6. manually terminate the flow before overfilling or overpressure occurs; and [49 CFR 193.2513(b)(6)]#

(7)7. deactivate cargo transfer systems in a safe manner by depressurizing, venting, and disconnecting lines and conducting any other appropriate operations. [49 CFR 193.2513(b)(7)]#

(C)C. In addition to the requirements of Subparagraph B of this Section, the procedures for cargo transfer must be located at the transfer area and include provisions for personnel to:#

(1)1. be in constant attendance during all cargo transfer operations; [49 CFR 193.2513(c)(1)]#

(2)2. prohibit the backing of tank trucks in the transfer area, except when a person is positioned at the rear of the truck giving instructions to the driver; [49 CFR 193.2513(c)(2)]#

(3)3. before transfer, verify that:#

(a)a. each tank car or tank truck complies with applicable regulations governing its use; [49 CFR 193.2513(c)(3)(i)]#

(b)b. all transfer hoses have been visually inspected for damage and defects; [49 CFR 193.2513(c)(3)(ii)]#

(c)c. each tank truck is properly immobilized with chock wheels, and electrically grounded; and [49 CFR 193.2513(c)(3)(iii)]#

(d)d. each tank truck engine is shut off unless it is required for transfer operations; [49 CFR 193.2513(c)(3)(iv)]#

(4)4. prevent a tank truck engine that is off during transfer operations from being restarted until the transfer lines have been disconnected and any released vapors have dissipated; [49 CFR 193.2513(c)(4)]#

(5)5. prevent loading LNG into a tank car or tank truck that is not in exclusive LNG service or that does not contain a positive pressure if it is in exclusive LNG service, until after the oxygen content in the tank is tested and if it exceeds 2 percent by volume, purged in accordance with a procedure that meets the requirements of "Purging Principles and Practices (incorporated by reference, see LAC 43:XIII.6713)". [49 CFR 193.2513(c)(5)]#

(6)6. verify that all transfer lines have been disconnected and equipment cleared before the tank car or tank truck is moved from the transfer position; and [49 CFR 193.2513(c)(6)]#

(7)7. verify that transfers into a pipeline system will not exceed the pressure or temperature limits of the system. [49 CFR 193.2513(c)(7)]#

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:551.C.#

HISTORICAL NOTE: Promulgated by the Department of Natural Resources, Office of Conservation, LR 44:1054 (June 2018).#