(a) The appropriate implementing documents will indicate whether and the extent to which this part 201 shall apply to the procurement of commodities or commodity-related services or both. Whenever this part 201 is applicable, those terms and conditions of this part will govern which are in effect on the date of issuance of the direct letter of commitment to the supplier; if a bank letter of commitment is applicable, the terms and conditions govern which are in effect on the date of issuance of an irrevocable letter of credit under which payment is made or is to be made from funds made available under the Act, or, if no such letter of credit has been issued, on the date payment instructions for payment from funds made available under the Act are received by the paying bank.

(b) The borrower/grantee is responsible for compliance with the applicable provisions of this part by importers and suppliers and for assuring that importers and suppliers are informed of the extent to which this part applies.

(c) Unless otherwise indicated, references in this part 201 to subparts or to sections relate to subparts or sections of this part 201.