Radon Testing for Safe Schools Act - Directs the Administrator of the Environmental Protection Agency (EPA) to promulgate regulations requiring local educational agencies to test schools in areas having elevated radon levels. Makes the results of such tests available to the public. Requires radon testing and mitigation to be carried out by individuals approved by the Administrator or a State.

Establishes within EPA a Radon Testing and Mitigation Assistance Program to provide assistance for testing and mitigation devices and methods. Requires State Governors to establish priority lists of assistance applicants, based on the nature and magnitude of potential exposure to radon. Sets forth criteria to be considered by the Administrator in ranking such applications.

Authorizes the provision to approved applicants of loans of up to 100 percent, and grants of up to 50 percent, of the total cost of a testing or mitigation program.

Outlines loan agreement terms and application requirements.

Requires the Administrator to report annually to the Senate Committee on Environment and Public Works and the House Committee on Energy and Commerce on the loan and grant program.

Authorizes appropriations.