Introduction: This study investigates whether United States university libraries’ commitment to increasing open access (OA) to scholarly outputs as demonstrated by their support of campus level OA policies translates into adoption of OA policies that apply specifically to library employees. Method: This mixed-methods study used an anonymous survey and optional open-ended interviews of scholarly communications librarians at Carnegie Classification Doctoral Universities (Very High Research [R1] and High Research [R2]) to gather information about OA policies or statements at their institutions and/or within their libraries. Results & Discussion: Variation in campus culture and governance structure meant the path from creation to adoption to implementation of a campus and/or library OA policy was similarly varied. The research reveals librarians’ motivations for and contributions to advancement of OA on their campuses, and sometimes also within their libraries. Conclusion: Many of the rationales driving adoption of campus OA policies similarly drive adoption of library-specific OA policies. Those surveyed whose institutions did have library-based OA policies referenced both the importance of leading by example and alignment with institutional mission and values.