46 CFR §67.243
An instrument subordinating a mortgage presented for filing and recording must:
- (a)Be signed by or on behalf of each mortgagee whose mortgage is being subordinated; and
- (b)Recite the following:
- (1)The name and address of each mortgagee whose mortgage is being subordinated; and
- (2)The name and address of each party holding an interest in the instrument subordinating the mortgage.