StacksVerified U.S. regulatory reference

46 CFR §128.450

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Liquid-mud piping systems may use resiliently seated valves of Category A to comply with §§ 56.20-15 and 56.50-60 of this chapter.
  2. (b)Tanks for oil-based liquid mud must be fitted with tank vents equipped with flame screens. Vents must not discharge to the interior of the vessel.