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
Q = KU1.4 L1.6 * 10-5 m3/hr
where:
Q = maximum permissible slops discharge rate in cubic meters per hour.
V = volume of slops in the tank in cubic meters.
K = 4.3, except K = 6.45 if Q is distributed between two NLS residue discharge outlets on opposite sides of the ship (see §§ 153.470(c) and 153.481(b) ).
U = ship's speed in knots.
L = ship's length in meters.
N = number of tanks containing Category B NLS residue pumped into the slop tank.
46 C.F.R. §153.1126