DUNIWAY, Circuit Judge: The National Labor Relations Board petitions, in No. 72-1908, under 29 U.S.C. § 160(e), for enforcement of its cease and desist order against Local 50 of the International Longshoremen's and Warehousemen's Union. In Nos. 72-2263 and 72-2315, Local 50 and the Pacific Maritime Association (PMA), an association representing the employers, petition to set the Board's order aside. We deny enforcement in No. 72-1908 and grant the petitions in Nos. 72-2263 and 72-2315.