Nothing in this part precludes the continued use of other affidavits of support provided by USCIS in a case other than a case described in § 213a.2(a)(2). The obligations of section 213A of the Act do not bind a person who executes such other USCIS affidavits of support. Persons sponsoring an Amerasian alien described in section 204(f)(2) of the Act remain subject to the provisions of section 204(f)(4)(B) of the Act and 8 CFR 204.4(i), as appropriate.