2 pages. Excerpt: This announcement informs taxpayers that the Internal Revenue Service is modifying Rev. Proc. 2007-70 ... by revising the optional standard mileage rates for computing the deductible costs of operating an automobile for business, medical, or moving expense purposes and for determining the reimbursed amount of these expenses that is deemed substantiated. This modification results from recent increases in the price of fuel. The revised standard mileage rates are: ... Business: 58.5 cents per mile ... [and] Medical and moving: 27 cents per mile.