StacksVerified U.S. regulatory reference

46 CFR §154.1715

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
When a vessel is carrying sulfur dioxide, the master shall ensure that:
  1. (a)A cargo tank is dry before it is loaded with sulfur dioxide; and
  2. (b)Air or inert gas admitted into a cargo tank carrying sulfur dioxide during discharging or tank breathing has a moisture content equal to or less than the moisture content of air with a dew point of −45 °C (−49 °F) at atmospheric pressure.