(1) RCW 88.16.190(2) requires the escort of a tug or tugs for all oil tankers 40,000 DWT or greater when not in ballast. For purposes of that provision only, deadweight tonnage shall be the maximum summer deadweight tonnage that was assigned to the vessel at the time of construction as reported in Lloyd's Register of Ships. Unless the vessel was structurally altered and remeasured to less than 40,000 DWT, this original deadweight tonnage shall be used for purposes of determining if the vessel requires the appropriate tug escort.

(2) It shall be a violation of this regulation to provide pilotage services to an oil tanker not in compliance with this rule when the pilot has actual knowledge of the noncompliance.

(3) Oil tankers found to be in violation of the provisions of this regulation shall be subject to the provisions of RCW 88.16.150.

(4) The deadweight tonnage provision of this rule is to be used solely for determining the required use of a tug escort.