46 CFR § 153.372
Gauges and vapor return for cargo vapor pressures exceeding 100 kPa (approx. 14.7 psia)
April 15, 2021
When table 1 references this section, the containment system must have a:
(a) Tank pressure gauge at the point where cargo flow is controlled during transfer; and
(b) Vapor return connection.
[CGD 73-96, 42 FR 49027, Sept. 26, 1977; 42 FR 57126, Nov. 1, 1977, as amended by CGD 81-078, 50 FR 21173, May 22, 1985]