The EAC seeks to encourage concurrent state and Federal testing. This policy will serve to lower overall testing costs by promoting state use of EAC accredited laboratories to conduct the more expensive and time consuming State testing requirements. These requirements could include items such as volume testing, any State specific environmental testing, and other State specific functionality testing. When states authorize a VSTL to perform concurrent testing, they are responsible for monitoring these testing procedures as they would if the testing was being conducted by the State itself. Additionally, the State remains responsible for State certification actions based upon the outcome of testing conducted by a VSTL. Concurrent state testing is not subject to EAC Certification or oversight.