The sUAS Adoption and Operations model incorporates the impacts of public perception of small Unmanned Aircraft System (sUAS) operations and policy implementation into a holistic model to complement sUAS forecasts. The model is intended to help policymakers, regulators, and analysts understand key drivers and test the impact of policy, perception, and safety on adoption and operations. This paper provides an overview of the model, its relevance to Federal Aviation Administration (FAA) forecasting of sUAS adoption and operations, and a case study to demonstrate the "what if" capability of the model.