Washington Revised Code Title 88. Navigation and Harbor Improvements § 88.16.190. Oil tankers--Restricted waters--Requirements

(2)(a)(i) An oil tanker of forty to one hundred twenty-five thousand deadweight tons may operate in the waters east of a line extending from Discovery Island light south to New Dungeness light and all points in the Puget Sound area, including but not limited to the San Juan Islands and connected waterways and the waters south of Admiralty Inlet, to the extent that these waters are within the territorial boundaries of Washington, only if the oil tanker is under the escort of a tug or tugs that have an aggregate shaft horsepower equivalent to at least five percent of the deadweight tons of the escorted oil tanker.

(ii) Effective September 1, 2020, the following may operate in Rosario Strait and connected waterways to the east only if under the escort of a tug or tugs that have an aggregate shaft horsepower equivalent to at least five percent of the deadweight tons of a forty thousand deadweight ton oil tanker: (A) Oil tankers of between five thousand and forty thousand deadweight tons; and (B) both articulated tug barges and towed waterborne vessels or barges that are: (I) Designed to transport oil in bulk internal to the hull; and (II) greater than five thousand deadweight tons.

(iii) The requirements of (a)(ii) of this subsection: (A) Do not apply to vessels providing bunkering or refueling services; (B) do not apply to a towed general cargo deck barge; and (C) may be adjusted or suspended by rule by the board of pilotage commissioners, consistent with RCW 88.16.260(1)(c).