Pub. L. 109-73, tit. III, sec. 303
INCREASE IN STANDARD MILEAGE RATE FOR CHARITABLE USE OF VEHICLES.
SEC. 303. INCREASE IN STANDARD MILEAGE RATE FOR CHARITABLE USE OF VEHICLES. Notwithstanding section 170(i) of the Internal Revenue Code of 1986, for purposes of computing the deduction under section 170 of such Code for use of a vehicle described in subsection (f)(12)(E)(i) of such section for provision of relief related to Hurricane Katrina during the period beginning on August 25, 2005, and ending on December 31, 2006, the standard mileage rate shall be 70 percent of the standard mileage rate in effect under section 162(a) of such Code at the time of such use. Any increase under this section shall be rounded to the next highest cent.