OK HB2621

Amends six sections of Title 68 relating to tax credits for coal mining, renewable energy, historic properties, energy-efficient housing, and railroad infrastructure.

Removes references to certain corporate income tax sections (Section 624 and 628 of Title 36) and consolidates credits under Section 2355 of Title 68.

Eliminates or restructures provisions allowing tax credit transfers and carryforwards, with transition protections for credits earned or transferred before January 1, 2012.

Makes credits operative beginning July 1, 2012, after a suspension period from July 1, 2010 through June 30, 2012, preventing claims during the interim period.

Declares an emergency effective date requiring the act to take effect immediately upon passage and approval.