In the aftermath of the strikes of the 1890s all mainland states in Australia legislated for some form of tribunal regulation of wages and employment conditions. Employers were antagonistic towards these tribunals, in particular compulsory arbitration tribunals. This paper reviews employers' attempts to circumscribe, by legislative and judicial means, the role of the federal compulsory arbitration tribunal. Although successful in emasculating the New Protection panoply accompanying arbitration, after 1913 their High Court challenges merely opened up new areas for federal jurisdiction. Employers lobbied unsuccessfully for legislation that would make the federal tribunal less intrusive and more benign. They were forced, however, to work within the new regulatory framework. The period proved a formative one in which enduring principles of wage fxation and dispute settlement were evolved, and the basis for the division of jurisdiction between federal and state tribunals were established. The centripetal forces resulting in a greater centralization of basic and secondary wage determination, together with the emergent 'test case' approach to standard hours of work, forced employer associations to take a more national and less state-oriented approach to conditions of employment.The legislative and employer organizational developments following the strikes of the 1890s have been reviewed in a recent article (Plowman 1985). The enactment of compulsory arbitration by three Parliaments and some form of minimum wage machinery in all the mainland states caused employers to coalesce with the same intensity as the strikes had done. The fact that arbitration legislation provided for standing rather than ad hoc tribunals, together with the legal protection afforded unions under such legislation, forced employers to form permanent associations rather than special purpose associations, which fragmented once their raison d'être had ceased to exist. Employer and trade associations further responded by federating at the state levels to form employers federations. These federations, in turn, brought into being the Central Council of Employers of Australia, whose major objective was to safeguard employers from adverse federal legislation. Differences between manufacturers and other groups about protection-particularly in its New Protection guise-caused manufacturers to form separate peak organizations at the state and national levels.