Picture of a brown recluse spider. Note the violin pattern on the cephalothorax and light-colored hairless abdomen. Picture of a brown recluse spider. Picture of a brown recluse spider head close-up. Generalized symptoms of bites from black widow and brown recluse spiders may include: 1  fever,  nausea,
Standard Mileage Rate Law and Legal Definition. The standard mileage rate (SMR), also known as mileage per diem, is the amount per mile that the Internal Revenue Service (IRS) allows small businesses and self-employed persons to use to calculate their vehicle expenses for tax deduction purposes.
Standard Rates. Employers who pay mileage reimbursements usually set the amount at or slightly below the IRS standard rate for business use of personal vehicles. The standard rate is updated periodically to reflect average vehicle operating costs. For example, in 2012 the standard rate was 55.5 cents per mile.f you're going to pay mileage reimbursements, you are required to comply with IRS rules regarding allowable mileage and record keeping in order to write off the reimbursements as a business expense.