Transfer Rack

{
  "id": "MLC-T-ENV-028509",
  "term": "Transfer Rack",
  "field": "Environment",
  "definition": "1. Collection of loading arms and loading hoses, at a single loading rack, that are used to fill tank trucks and/or railcars with organic liquids. [40 CFR 60.481 (CFR 2013)] [40 CFR 60.481a (CFR 2013)]\n\n2. Single system used to fill bulk cargo tanks mounted on or in a truck or railcar. A transfer rack includes all loading arms, pumps, meters, shutoff valves, relief valves, and other piping and equipment necessary for the transfer operation. Transfer equipment and operations that are physically separate (i.e., do not share common piping, valves, and other equipment) are considered to be separate transfer racks.\n\n3. Single system used to load organic liquids into, or unload organic liquids out of, transport vehicles or containers. It includes all loading and unloading arms, pumps, meters, shutoff valves, relief valves, and other piping and equipment necessary for the transfer operation. Transfer equipment and operations that are physically separate (i.e., do not share common piping, valves, and other equipment) are considered to be separate transfer racks.\n\n4. Collection of loading arms and loading hoses, at a single loading rack, that are assigned to an MCPU according to the procedures specified in § 63.2435(d) and are used to fill tank trucks and/or rail cars with organic liquids that contain one or more of the organic HAP listed in section 112(b) of the CAA of this subpart. Transfer rack includes the associated pumps, meters, shutoff valves, relief valves, and other piping and valves.\n\n5. System used to load organic liquids into tank trucks and railcars at a single geographic site. It includes all loading arms, pumps, meters, shutoff valves, relief valves, and other piping and equipment necessary for the transfer operation. Transfer equipment that are physically separate (i.e., do not share common piping, valves, and other equipment) are considered to be separate transfer racks.\n\n6. Collection of loading arms and loading hoses, at a single loading rack, that are assigned to a chemical manufacturing process unit subject to this subpart according to the procedures specified in § 63.100(h) and are used to fill tank trucks and/or railcars with organic liquids that contain one or more of the organic hazardous air pollutants listed in table 2 to this subpart. Transfer rack includes the associated pumps, meters, shutoff valves, relief valves, and other piping and valves. Transfer rack does not include: (i) Racks, arms, or hoses that only transfer liquids containing organic hazardous air pollutants as impurities; or (ii) Racks, arms, or hoses that vapor balance during all loading operations.",
  "references": [
    "40 CFR 60.481b (CFR 2024)",
    "40 CFR 63.1101 (CFR 2013)",
    "40 CFR 63.2406 (CFR 2013)",
    "40 CFR 63.2550 (CFR 2013)",
    "40 CFR 63.11502 (CFR 2013)",
    "40 CFR 63.101 (CFR 2024)"
  ],
  "url": "https://mlchart.com/terminology/environment/transfer-rack/"
}