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This paper analyzes the nature of the transformations of labour in a globalising world. The concept of hybridisation highlights the specificity of the grey zone, taken as the result of the blurring of the norms of employment and the emergence of new forms of labour. The grey zone relates to the infringements made to law or to practices infiltrated in chinks in the law. The helicopter pilot profession in Brazil was chosen because it is embedded in a frame of rigid norms edicted by international institutions and in practices that tend locally to by-pass them. They reveal the challenges involved in the acceleration of the transformations due to globalisation.