Travel expenses may be included, where applicable, as part of requests for prior authorization to obtain the services of investigators, experts, or others under 18 U.S.C. § 3006A(e). Some local courts may require advance authorization to incur such expenses over stipulated amounts or for travel in excess of stipulated distances. Some courts also have specific requirements for documentation of expenses. Counsel may wish to seek the court's prior authorization for travel of investigators, experts, or other service providers (particularly for overnight travel requiring lodging and for long-distance travel) to ensure that their travel expenses will be fully reimbursed.