29 C.F.R. § 1470.41
(a) General.
(1) Except as provided in paragraphs (a) (2) and (5) of this section, grantees will use only the forms specified in paragraphs (a) through (e) of this section, and such supplementary or other forms as may from time to time be authorized by OMB, for:
(e) Outlay report and request for reimbursement for construction programs—(1) Grants that support construction activities paid by reimbursement method.
(2) Grants that support construction activities paid by letter of credit, electronic funds transfer or Treasury check advance.