310.16—What kind of cost documentation is necessary?
Cost documentation must be adequate for an audit. At a minimum, you must:
(b)
Specify the local agency that incurred the cost, (such as, the Town Fire Department, the County Health Department, or the City Department of Public Works);
(c)
Include invoices, sales receipts, rental or leasing agreements, or other proof of costs you incurred; and
(d)
Certify that all costs are accurate and that you incurred them specifically for the response for which you are requesting reimbursement.