In the past three decades, there has been increasing research carried out on the role of heritage and its processes in achieving broader sustainable development objectives beyond heritage conservation. As part of this movement, people-centered approaches and participation have been widely integrated into international regulations and guidelines on heritage management, stimulating the implementation of case studies-based research worldwide. Despite the wide advocacy of participatory heritage practices’ contributions to more inclusive and culturally sensitive local development in a great variety of projects, there is limited research into the roles these practices can have in addressing sustainability objectives. How are these roles addressed in international heritage regulatory frameworks, and what forms of participation are promoted for their fulfillment? This paper seeks to answer this research question through a content analysis of international declarations, conventions, guidelines, and policy documents focused on the roles and forms of participation that are promoted. A crossed-matched analysis of results reveals that active forms of participation are those most used to promote all roles and subcategories of participation, as a right, as a driver, and as an enabler of sustainable development. However, fewer active forms are presented as complementary at different stages of sustainability-oriented heritage practices. Moreover, a higher incidence of generic forms of participation can be observed in documents addressing international stakeholders, while partnership and intervention are to be found in those targeting regional and local actors. Nevertheless, the low incidence of decisional forms of participation confirms the challenges of power-sharing at all scales. Trends and influences are highlighted, informing heritage research, governance, and policymaking, but also revealing gaps and ambiguities in current regulations that further research encompassing a larger number of documents might confirm.

Collections-based organizations (CBOs) can play a crucial role in addressing sustainable development (SD), but their aspiration to become more sustainable, as seen in policies and guidelines, is confronted with several challenges in practice. To facilitate a sustainability transition, this process of change needs to be managed and adequate tools adopted and implemented. Many tools exist to support this transition; however, a scarcity of centralized resources available to CBOs might negatively affect the integration of sustainability practices in their work. With the aim to address this gap, ICCROM launched the project “Our Collections Matter” (OCM) and developed an online toolkit (OCMT) to centralize resources and help CBOs align their work to the UN Agenda 2030. Recently, a workshop was organized with professionals in the field to discuss shared challenges and aspirations and to test the OCMT. This study reflects on how such centralization of resources can contribute to overcoming existing challenges and support the sustainability aspirations of CBOs, fostering change in the field. To do that, the workshop outcomes are analyzed and discussed from a change management perspective, looking at the impact that the OCM project and its activities can have on fostering change, and the role that ICCROM can play in facilitating the sustainability transition of the field.