Reflection on the application of the Consolidated Framework for Implementation Research to a national policy to improve inclusion of people with disabilities.

People with disabilities face many barriers in the built environment impacting their mobility, health, and social participation. In the US, under the Americans with Disabilities Act (ADA), municipalities were required to develop and implement barrier-removal plans for pedestrian infrastructure, called ADA transition plans, but very few have done so. Many communities know they need a plan but do not know how to get it done because of a lack of understanding of the many different implementation considerations. Implementation science offers a useful approach for understanding complex policy implementation such as ADA plans. This paper provides a reflection on the adaptation of the Consolidated Framework for Implementation Research (CFIR) to evaluate the implementation of ADA transition planning. To apply the CFIR, we tailored the construct definitions and modified them to fit the specific context of the ADA transition planning process. We documented the constructs that were more challenging to apply, those that were not relevant, and those that were particularly useful. This paper can serve as a valuable example that other researchers can use when considering adapting the CFIR or other implementation frameworks for the evaluation of complex social policy beyond the ADA.