Vessel Pollution and Dangerous Chemicals Regulations

Marginal note:Authorized discharge — Category X

68 For the purposes of section 67, ballast water that contains a Category X noxious liquid substance only because the ballast water was introduced into a tank that last contained that substance may be discharged if

• (a) the tank underwent a tank prewash operation in accordance with subsection 63(3);

• (b) the vessel is en route at a speed of at least 7 knots, if it is self-propelled, or at least 4 knots, if it is not self-propelled; and

• (c) the discharge is made

  • (i) in accordance with the vessel’s procedures and arrangements manual,

  • (ii) below the waterline through an underwater discharge outlet at a rate that does not exceed the maximum rate for which the underwater discharge outlet was designed,

  • (iii) at a distance of at least 12 nautical miles from the nearest land, and

  • (iv) into waters whose depth is at least 25 m.