; (2) in paragraph (4)(B)— (A) by striking a corporation the first place it appears and inserting a nonprofit corporation ; (B) by striking any stockholder, executive or administrative personnel, and inserting any executive or administrative personnel ; and (C) by striking stockholders, executive or administrative personnel, and inserting executive or administrative personnel ; (3) in paragraph (4)(D)— (A) by striking stockholders and ; (B) by striking such stockholders or personnel and inserting such personnel ; and (C) by striking such stockholders and personnel and inserting such personnel ; and (4) in paragraph (5), by striking stockholders and . (c) Treatment of government contractors Section 317(b) of such Act ( 52 U.S.C. 30119(b) ) is amended— (1) by striking any corporation and inserting any nonprofit corporation ; and (2) by striking a corporation and inserting a nonprofit corporation . (d) Effective date