1. Regulations
  2. title 46
  3. chapter I-i1
  4. part 64
  5. subpart B
  6. § 64.47

View all text of Subpart B [§ 64.11 - § 64.55]

§ 64.47 - Type of relief devices.

(a) An MPT with an internal capacity of more than 550 U.S. gallons must have one or more spring loaded relief valves. In addition, a rupture disc may be attached.

(b) An MPT with an internal capacity of 550 U.S. gallons or less must have a rupture disc or a spring loaded relief valve.

AUTHORITY: 46 U.S.C. 3306, 3703; 49 U.S.C. App. 1804; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3.

SOURCE: CGD 73-172, 39 FR 22950, June 25, 1974, unless otherwise noted.

CITE AS: 46 CFR 64.47