Interest rates; underpayments and overpayments. The rates for interest determined under section 6621 of the Code for the calendar quarter beginning July 1, 2009, will be 4 percent for overpayments (3 percent in the case of a corporation), 4 percent for underpayments, and 6 percent for large corporate underpayments. The rate of interest paid on the portion of a corporate overpayment exceeding $10,000 will be 1.5 percent.

This notice provides guidance on the maximum face amount of recovery zone economic development bonds and recovery zone facility bonds that may be issued by each state and the counties and large municipalities in such state before January 1, 2011 under sections 1400U-2 and 1400U-3 of the Code as provided in section 1400U-1.

This notice sets forth a process that allows manufacturers to certify to the Service that a particular vehicle meets the requirements of section 30D of the Code. Taxpayers purchasing such vehicles can rely on the domestic manufacturer (or, in the case of a foreign manufacturer, its domestic distributor) to certify that a particular make, model, and model year of vehicle qualifies as a plug-in electric drive motor vehicle under section 30D, and to certify the amount of the credit allowable with respect to the vehicle.

The IRS has revoked its determination that Home Ownership Providers, Inc., of Marietta, GA; and Wasatch Homes Charitable Foundation of Draper, UT, qualify as organizations described in sections 501(c)(3) and 170(c)(2) of the Code.