Grant funds may be used to amortize the principal of or pay interest on a loan or mortgage on an existing building acquired under this part, including a building purchased by a grantee prior to the promulgation of this part, but only if the building is being used for the purposes of section 330 and complies with the applicable provisions of this subpart and only to the extent the Secretary finds such principal amounts and interest rates to be reasonable.

[41 FR 5700, Dec. 30, 1976]