In the case of an individual performing service in his capacity as a volunteer or volunteer leader within the meaning of the Peace Corps Act (see section 31.3121(p)), the term “wages” shall, subject to the provisions of section 3121(a)(1) (see § 31.3121(a)-1), include as such individual's remuneration for such service only amounts paid pursuant to section 5(c) or section 6(1) of the Peace Corps Act (22 U.S.C. 2501; 75 Stat. 612).