Municipal advisory committees are becoming increasingly influential in guiding decision-making processes that address climatic issues. According to the Adaptigation Institutionalization Framework (included in the recent IPCC report), the implementation of such participatory structures is vital for the effective, joint institutionalization of climate change mitigation and adaptation. However, there is a lack of empirical evidence to support this claim. Against this background, this paper tests the Adaptigation Framework using the example of municipal advisory committees in Germany.