28 USC 1920 - Taxation of costs

A judge or clerk of any court of the United States may tax as costs the following:
(1) Fees of the clerk and marshal;
(2) Fees of the court reporter for all or any part of the stenographic transcript necessarily obtained for use in the case;
(3) Fees and disbursements for printing and witnesses;
(4) Fees for exemplification and copies of papers necessarily obtained for use in the case;
(5) Docket fees under section 1923 of this title;
(6) Compensation of court appointed experts, compensation of interpreters, and salaries, fees, expenses, and costs of special interpretation services under section 1828 of this title. A bill of costs shall be filed in the case and, upon allowance, included in the judgment or decree.