This bill amends Section 3-310 of Title 29 of the Oklahoma Statutes, which pertains to the Wildlife Diversity Fund. It reauthorizes the income tax checkoff for donations to the Oklahoma Wildlife Diversity Program, allowing taxpayers to contribute a portion of their tax refunds to support wildlife conservation efforts. The bill updates the language to specify that the checkoff will be available for tax year 2002 and subsequent years, rather than starting after December 31, 2001. Additionally, it clarifies that the Oklahoma Wildlife Conservation Commission can invest the fund's money in accordance with a written investment policy and the Oklahoma Uniform Prudent Investor Act.

The bill also includes provisions for taxpayers who may make erroneous donations, allowing them to file for a refund within three years of the tax return's due date. It stipulates that any refunds issued will be deducted from the total donations received in the following year before the funds are allocated to the Wildlife Diversity Fund. The reauthorization of the income tax checkoff is set to take effect on January 1, 2027, and the overall act will become effective on November 1, 2026.