Full text of Washington Revised Code of Washington § 43.19.642 — Biodiesel fuel blends — Use by agencies — Annual report., with citation guidance and answers to common questions.
§ 43.19.642. Biodiesel fuel blends — Use by agencies — Annual report.
(1) Effective June 1, 2006, for agencies complying with the ultra-low sulfur diesel mandate of the United States environmental protection agency for on-highway diesel fuel, agencies shall use biodiesel as an additive to ultra-low sulfur diesel for lubricity, provided that the use of a lubricity additive is warranted and that the use of biodiesel is comparable in performance and cost with other available lubricity additives. The amount of biodiesel added to the ultra-low sulfur diesel fuel shall be not less than two percent.
(2) Except as provided in subsection (5) of this section, effective June 1, 2009, state agencies are required to use a minimum of 20 percent biodiesel as compared to total volume of all diesel purchases made by the agencies for the operation of the agencies' diesel-powered vessels, vehicles, and construction equipment.
(3) All state agencies using biodiesel fuel shall, beginning on July 1, 2016, file annual reports with the department of enterprise services documenting the use of the fuel and a description of how any problems encountered were resolved.
(4) By December 1, 2009, the department of enterprise services shall:
(a) Report to the legislature on the average true price differential for biodiesel by blend and location; and
(b) Examine alternative fuel procurement methods that work to address potential market barriers for in-state biodiesel producers and report these findings to the legislature.
(5) The Washington state ferries is exempt from the requirements of this section and must use a minimum of five percent biodiesel as compared to total volume of all diesel used by the Washington state ferries, and develop internal processes to transition diesel vessels in the fleet to the highest possible biofuel blend or renewable diesel available by 2030.
Notes
Effective date—2025 c 417 ss 101-103, 406, 701-709, 808-814, 1102, 1103, and 1305: See note following RCW
82.38.030.
Findings—Intent—2025 c 417: See note following RCW
82.38.030.
Effective date—2023 c 472: "This act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and takes effect immediately [May 16, 2023]." [
2023 c 472 s 1202.]
Effective date—2021 c 333: "This act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and takes effect immediately [May 18, 2021]." [
2021 c 333 s 1302.]
Effective date—2019 c 416: "This act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and takes effect immediately [May 21, 2019]." [
2019 c 416 s 1202.]
Effective date—2017 c 313: "Except for sections 705 and 706 of this act, this act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and takes effect immediately [May 16, 2017]." [
2017 c 313 s 1302.]
Effective date—2015 1st sp.s. c 10: "This act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and takes effect immediately [June 11, 2015]." [
2015 1st sp.s. c 10 s 1302.]
Effective date—2013 c 306: See note following RCW
47.64.170.
Effective date—2012 c 86: See note following RCW
47.76.360.
Effective date—2010 c 247: "This act is necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and takes effect immediately [March 30, 2010]." [
2010 c 247 s 802.]
Effective date—2009 c 470: See note following RCW
46.68.170.
Findings—Intent—2006 c 338: See note following RCW
19.112.110.
Findings—2003 c 17: "The legislature recognizes that:
(1) Biodiesel is less polluting than petroleum diesel;
(2) Using biodiesel in neat form or blended with petroleum diesel significantly reduces air toxics and cancer-causing compounds as well as the soot associated with petroleum diesel exhaust;
(3) Biodiesel degrades much faster than petroleum diesel;
(4) Biodiesel is less toxic than petroleum fuels;
(5) The United States environmental protection agency's new emission standards for petroleum diesel that take effect June 1, 2006, will require the addition of a lubricant to ultra-low sulfur diesel to counteract premature wear of injection pumps;
(6) Biodiesel provides the needed lubricity to ultra-low sulfur diesel;
(7) Biodiesel use in state-owned diesel-powered vehicles provides a means for the state to comply with the alternative fuel vehicle purchase requirements of the energy policy act of 1992, P.L. 102-486; and
(8) The state is in a position to set an example of large scale use of biodiesel in diesel-powered vehicles and equipment." [
2003 c 17 s 1.]
Source: official Washington text · Last verified 2026-08-27
Frequently Asked Questions About Washington § 43.19.642
What does Revised Code of Washington § 43.19.642 cover?
Section 43.19.642 ("Biodiesel fuel blends — Use by agencies — Annual report.") is part of the Revised Code of Washington, the codified statutory law of Washington. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
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Sources & Verification
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