Establish subtrust within the coal trust to increase educational tax credits

This bill creates a new Educational Opportunity Fund within Montana's Coal Severance Tax Trust Fund and uses earnings from that fund to increase the maximum limits for educational tax credits. The legislation affects taxpayers and corporations by allowing them to claim tax credits for donations to public schools for innovative programs and to student scholarship organizations. Key provisions include raising the annual aggregate limit for tax credits from $5 million to a higher amount based on fund earnings, removing the sunset date for these credit programs, and establishing rules for how school districts must handle excess donations. The bill also requires school districts to seek department preapproval for donations before issuing tax credit receipts to donors.