Section 6. Applicability of business corporation law to railroad corporations

(a) The business corporation law applies to a  corporation
  heretofore  or  hereafter  formed under this chapter, or under any other
  statute or special act of this state,  or  under  laws  other  than  the
  statutes of this state, which has as its purpose or among its purposes a
  purpose for which a corporation may be formed under this chapter, except
  that in case of a conflict between the business corporation law and this
  chapter the provisions of this chapter shall govern. If there is in this
  chapter  a  provision  relating  to  a  matter  embraced in the business
  corporation law and not in conflict  therewith,  both  provisions  shall
  apply.  Any  corporation  to  which the business corporation law is made
  applicable  by  this  section  shall  be  treated  as  a  "corporation",
  "domestic corporation", or "foreign corporation", as such terms are used
  in  the business corporation law, except that the purposes for which any
  such corporation may be formed under section five of this chapter  shall
  not thereby be extended.
    (b) For the purpose of this section and elsewhere in this chapter, the
  effective  date  of  the  business corporation law as to corporations to
  which the business corporation law is made applicable  by  this  section
  shall be September first, nineteen hundred sixty-four.