No. 90-1195. Heard September 14, 1990. Decided November 2, 1990. Thomas Royall Smith, with whom Pamela E. Tracey and Jackson, Lewis, Schnitzler Krupman, Boston, Mass., were on brief, for respondent. David A. Fleischer, Atty., N.L.R.B., with whom Jerry M. Hunter, Gen. Counsel, Robert E. Allen, Associate Gen. Counsel, and Aileen A. Armstrong, Deputy Associate Gen. Counsel, N.L.R.B., were on brief, for petitioner. Before TORRUELLA, Circuit Judge, BOWNES, Senior Circuit Judge, and CYR, Circuit Judge
(a) This portion of the rule shall be applicable to acute care hospitals, as defined in paragraph (f) of this section: Except in extraordinary circumstances and in circumstances in which there are existing non-conforming units, the following shall be appropriate units, and the only appropriate units, for petitions filed pursuant to section 9(c)(1)(A)(i) or 9(c)(1)(B) of the National Labor Relations Act, as amended, except that, if sought by labor organizations, various combinations of units may also