Section 91. Contract and oath of enlistment

Every person who enlists or
  re-enlists  in  any  force  of  the  organized  militia  shall  sign  an
  enlistment   contract   and  shall  take  and  subscribe  such  oath  or
  affirmation of enlistment as may be prescribed by applicable laws of the
  United States and by regulations issued pursuant to this chapter.   Such
  oath  shall  be  taken  and subscribed before any officers authorized by
  section seventy-three of this chapter to administer the oath  of  office
  to  a  commissioned  officer.    A  person making a false oath as to any
  statement contained in such enlistment contract shall upon conviction be
  deemed guilty of perjury.