ORS 317.488
Section 6, chapter 358, Oregon Laws 1999, provides:
Sec. 6. Sections 2 and 4 of this 1999 Act [316.852 and 317.488] apply to donations and reduced sales occurring in tax years beginning on or after January 1, 2000, and before January 1, 2008. [1999 c. 358, § 6]