StacksVerified U.S. regulatory reference

46 CFR §127.250

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Each enclosed space within the vessel must be properly vented or ventilated. Means must be provided for closing each vent and ventilator.
  2. (b)Means must be provided for stopping each fan in a ventilation system serving machinery and cargo spaces and for closing, in case of fire, each doorway, ventilator, and annular space around funnels and other openings into such spaces.