This thesis uses institutional ethnography to explore the text-based regulatory framework of the Australian Vocational Education and Training (VET) sector. Training Packages are national competency standards used to assess local workplace practice. The Australian Quality Training Framework (AQTF) is a national compliance framework used to audit local learning and assessment practice. These texts operate in a ‘symbiotic relationship’ to achieve a policy goal of national consistency. The researcher explicates the social relations of VET starting from her disquiet as a practitioner. The thesis argues that Training Packages and the AQTF socially organise the content and delivery of local learning and assessment activities. VET practitioners struggle to use these texts to support good practice, and their hidden work maintains an unstable VET system. Yet the extralocal mode of ruling offers no room to challenge VET policy. The thesis explicates three themes. Interview data is used to explore the contrast between the institutional language of Training Packages and the vernacular of workplaces in which these texts are activated. Many practitioners and participants simply do not understand Training Package competency standards. Using these texts to judge employee performance shifts the policing of workplace practice from local sites to external VET authorities. A second theme emerges as the analysis explores why VET practitioners use this excluding language in their work with participants. Interview data reveals that local training organisations achieve different readings as they engage with ruling VET texts. Some organisations use the national texts as broad frameworks, allowing practitioners to create spaces for meaningful learning. Other organisations adopt a narrow and rule-bound reading of national texts, displacing practitioners’ authority over their own practice. A third theme is explored through examination of a sequence of VET texts. The review and redevelopment of the mandatory qualifications for VET practitioners identified the language of the competency standards as a significant accessibility issue. These concerns were reshaped and subsumed in an official response that established the use of this language as a compulsory assessable requirement and a language and literacy benchmark. The thesis presents a new understanding of VET as a regulatory framework established through multiple levels of ruling texts that connect local sites to national government agendas. While some individual practitioners are able to navigate through this system, there is an urgent need for practitioners as a profession to challenge national hegemony