such fees, in the aggregate, shall not exceed the costs incurred by the Department of Homeland Security associated with providing the credential or performing the background record checks;

the Secretary shall charge fees in amounts that are reasonably related to the costs of providing services in connection with the activity or item for which the fee is charged;

a fee may not be collected except to the extent such fee will be expended to pay for the costs of conducting or obtaining a criminal history record check and a review of available law enforcement databases and commercial databases and records of other governmental and international agencies; reviewing and adjudicating requests for waiver and appeals of agency decisions with respect to providing the credential, performing the background record check, and denying requests for waiver and appeals; and any other costs related to providing the credential or performing the background record check; and

any fee collected shall be available for expenditure only to pay the costs incurred in providing services in connection with the activity or item for which the fee is charged and shall remain available until expended.