Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. HHHHH, Tbl. 5 Table 5 to Subpart HHHHH of Part 63—Emission Limits and Work Practice Standards for Transfer Operations

1. Group 1 transfer operation vent stream

a. Reduce emissions of total organic HAP by ≥75 percent by weight by venting emissions through a closed-vent system to any combination of control devices (except a flare); or

b. Reduce emissions of total organic HAP by venting emissions from a non-halogenated vent stream through a closed-vent system to a flare; or

c. Use a vapor balancing system designed and operated to collect organic HAP vapors displaced from tank trucks and railcars during loading and route the collected HAP vapors to the storage tank from which the liquid being loaded originated or to another storage tank connected by a common header.

2. Halogenated Group 1 transfer operation vent stream for which you use a combustion device to control organic HAP emissions

a. Use a halogen reduction device after the combustion device to reduce emissions of hydrogen halide and halogen HAP by ≥95 percent by weight or to ≤0.45 kg/hr; or

b. Use a halogen reduction device before the combustion device to reduce the halogen atom mass emission rate to ≤0.45 kg/hr.