§ 63.923 Standards—Container Level 2 controls.
(a) This section applies to owners and operators subject to this subpart and required to control air emissions from containers using Container Level 2 controls.
(b) A container using Container Level 2 controls is one of the following:
(1) A container that meets the applicable U.S. Department of Transportation (DOT) regulations on packaging hazardous materials for transportation as specified in paragraph (f) of this section.
(2) A container that has been demonstrated to operate with no detectable organic emissions as defined in § 63.921 of this subpart.
(3) A container that has been demonstrated within the preceding 12 months to be vapor-tight by using Method 27 in appendix A of 40 CFR part 60 in accordance with the procedure specified in § 63.925(b) of this subpart.
(c) Transfer of regulated-material in to or out of a container using Container Level 2 controls shall be conducted in such a manner as to minimize exposure of the regulated-material to the atmosphere, to the extent practical, considering the physical properties of the regulated-material and good engineering and safety practices for handling flammable, ignitable, explosive, or other hazardous materials. Examples of container loading procedures that meet the requirements of this paragraph include using any one of the following: a submerged-fill pipe or other submerged-fill method to load liquids into the container; a vapor-balancing system or a vapor-recovery system to collect and control the vapors displaced from the container during filling operations; or a fitted opening in the top of a container through which the regulated-material is filled, with subsequent purging of the transfer line before removing it from the container opening.