StacksVerified U.S. regulatory reference

46 CFR §153.1126

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
NLS residue in a slop tank may not be discharged into the sea unless— For tank contents that are miscible For tank contents that are immiscible
  1. (a)The ship meets the conditions for discharging the NLS residue from a cargo tank in § 153.1128; and
  2. (b)For Category B NLS residue transferred to the slop tank under § 153.1119(b), the NLS is discharged—
    1. (1)Through an NLS residue discharge system with the flow recording equipment required in § 153.481(b)(2) operating; and
    2. (2)At a rate maintained at or below Q in the following: