32 C.F.R. § 1630.43
Class 4-D: Minister of religion
In accord with part 1645 of this chapter any registrant shall be placed in Class 4-D who is a:
(a) Duly ordained minister of religion; or
(b) Regular minister of religion.
In accord with part 1645 of this chapter any registrant shall be placed in Class 4-D who is a:
(a) Duly ordained minister of religion; or
(b) Regular minister of religion.