"NEW SECTION.  Sec. 502   (1) Through sections 503 and 504 of this act the legislature intends to address the taxation of persons manufacturing and/or selling bunker fuel. Bunker fuel is fuel intended for consumption outside the waters of the United States by vessels in foreign commerce. Although the state has historically collected tax from bunker fuel manufacturers, recently questions have arisen whether the manufacture of bunker fuel is subject to business and occupation tax under RCW 82.04.240. Pursuant to sections 503 and 504 of this act, the activity is taxable under RCW 82.04.240.
     (2) The legislature finds that at the time the deduction allowed under RCW 82.04.433 was enacted in 1985, it was intended to apply only to the wholesaling or retailing of bunker fuel. In 1987 the legislature enacted the multiple activities tax credit in RCW 82.04.440. Enactment of the multiple activities tax credit resulted in changed tax liability for certain taxpayers. In particular, some taxpayers that engaged in activities that had been exempt under the prior multiple activities exemption became subject to tax on manufacturing activities upon enactment of the multiple activities tax credit in its place. The manufacturing of bunker fuel is one such activity.

Sec. 503   RCW 82.04.433 and 1985 c 471 s 16 are each amended to read as follows:
     (1) In computing tax there may be deducted from the measure of tax imposed under RCW 82.04.250 and 82.04.270 amounts derived from sales of fuel for consumption outside the territorial waters of the United States, by vessels used primarily in foreign commerce.
     (2) ((Nothing in this section shall be construed to imply that amounts which may be deducted under this section were taxable under Title 82 RCW prior to the enactment of this section.)) The deduction in subsection (1) of this section does not apply with respect to the tax imposed under RCW 82.04.240, whether the value of the fuel under that tax is measured by the gross proceeds derived from the sale thereof or otherwise under RCW 82.04.450.

NEW SECTION.  Sec. 504   The department of revenue must take any actions that are necessary to ensure that its rules and other interpretive statements are consistent with sections 502 and 503 of this act."

"NEW SECTION.  Sec. 512   Sections 502 through 504 of this act apply both prospectively and retroactively.

NEW SECTION.  Sec. 513   Sections 502 through 504 of this act are necessary for the immediate preservation of the public peace, health, or safety, or support of the state government and its existing public institutions, and take effect immediately."