Wash. Rev. Code § 88.16.190
*** CHANGE IN 2026 *** (SEE 2436.SL) ***
(2)
(a)
(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:
(iii) The requirements of (a)(ii) of this subsection:
(3) The definitions in this subsection apply throughout this section unless the context clearly requires otherwise.
[ 2019 c 289 s 2; 1994 c 52 s 1; 1975 1st ex.s. c 125 s 3.]
Finding—Intent—2019 c 289: "The legislature finds that a variety of existing policies designed to reduce the risk of oil spills have helped contribute to a relatively strong safety record for oil moved by water, pipeline, and train in recent years in Washington state. Nevertheless, gaps exist in our safety regimen, especially deriving from shifts in the modes of overwater transportation of oil and the increased transport of oils that may submerge or sink, contributing to an unacceptable threat to Washington waters, where a catastrophic spill would inflict potentially irreversible damage on the endangered southern resident killer whales. In addition to the unique marine and cultural resources in Puget Sound that would be damaged by an oil spill, the geographic, bathometric, and other environmental peculiarities of Puget Sound present navigational challenges that heighten the risk of an oil spill incident occurring. Therefore, it is the intent of the legislature to enact certain new safety requirements designed to reduce the current, acute risk from existing infrastructure and activities of an oil spill that could eradicate our whales, violate the treaty interests and fishing rights of potentially affected federally recognized Indian tribes, damage commercial fishing prospects, undercut many aspects of the economy that depend on the Salish Sea, and otherwise harm the health and well-being of Washington residents. In enacting such measures, however, it is not the intent of the legislature to mitigate, offset, or otherwise encourage additional projects or activities that would increase the frequency or severity of oil spills in the Salish Sea. Furthermore, it is the intent of the legislature for this act to assist in coordinating enhanced international discussions among federal, state, provincial, first nation, federally recognized Indian tribe, and industry leaders in the United States and Canada to develop an agreement for an additional emergency rescue tug available to vessels in distress in the narrow Straits of the San Juan Islands and other boundary waters, which would lessen oil spill risks to the marine environment in both the United States and Canada." [ 2019 c 289 s 1.]
Severability—1975 1st ex.s. c 125: See note following RCW 88.16.170.