Text
TITLE 46 - SHIPPING
CHAPTER I - COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
SUBCHAPTER F - MARINE ENGINEERING
PART 54 - PRESSURE VESSELS
54.01 - 40 - External pressure (modifies UG28).
(a) The exemption from external pressure consideration provided by the note under UG28(f) does not apply.
(b) Vessels which may at times be subjected to partial vacuum due to nature of the contents, temperature, unloading operations, or other facet of employment shall either have vacuum breaker protection or be designed for not less than one-half atmosphere of external pressure.
[CGFR 70143, 35 FR 19906, Dec. 30, 1970]
Sponsored links
