Evidence-Based Policymaking Commission Act of 2014 - Establishes in the executive branch a Commission on Evidence-Based Policymaking. Directs the Commission to conduct a comprehensive study of the data inventory, data infrastructure, and statistical protocols related to federal policymaking and the statistical and programmatic agencies responsible for maintaining that data to:
Requires the Commission to consider if and how to create a clearinghouse for program and survey data.
Terminates the Commission not later than 18 months after enactment of this Act.