24 C.F.R. § 203.402a
The mortgagee shall be entitled to receive an allowance in the insurance settlement for unpaid mortgage interest if the mortgagor fails to meet the requirements of a forbearance agreement entered into pursuant to § 203.614 and this failure continues for a period of 60 days. The interest allowance shall be computed to:
(a) The earliest of the applicable following dates, except as provided in paragraph (b) of this section:
(b) The date foreclosure is initiated or a deed in lieu is obtained, or the date such actions were required by § 203.355(c), whichever is earlier, if the commencement of foreclosure within the time limits described in § 203.355(a), (b), (g), or (h) is precluded by:
[60 FR 57678, Nov. 16, 1995, as amended at 61 FR 35019, July 3, 1996]