To help individuals take advantage of all the tax credits, Division C of H.R. 1424 increases the income limits for the Alternative Minimum Tax, while the energy tax provision allows unused tax credits to be carried over to the next tax year. And to help finance energy efficiency improvements, the bill authorizes $800 million in Qualified Energy Conservation Bonds, which will be issued by state and local governments. The bonds can be applied to a wide range of energy efficiency projects, research and demonstration projects, and even renewable energy projects. The bill also extends the authority to issue bonds for qualified green building and sustainable design projects through 2012. See the Division B and C of H.R. 1424, and for comparison, see Subparts A, D, and E of Part IV of Subchapter A of Chapter 1 of the existing Internal Revenue Code (posted by the Cornell University Law School), as well as Section 168 of Part VI of Subchapter B.