Purpose of the Emission Protocol Gas Verification Program (PGVP)
In a recent rulemaking posted in the Federal Register (FR), EPA has established a national Protocol Gas Verification Program (PGVP). Under this program, EPA, in cooperation with the National Institute of Standards and Technology (NIST), will conduct an annual blind audit of EPA Protocol gases that are used to calibrate continuous emission monitoring systems (CEMS) and the instruments used in EPA reference methods. The use of EPA Protocol gases in these applications helps to ensure the quality of the emissions data that the Agency uses to assess the effectiveness of its emissions reduction programs under the Clean Air Act. The PGVP has four main objectives: (1) to ensure that EPA Protocol gases meet the accuracy requirements of 40 CFR Part 75; (2) to assist calibration gas consumers in their purchasing decisions; (3) to provide an incentive for gas vendors that perform well in the audits to continue to use good practices; and (4) to encourage gas vendors that perform poorly in the audits to make improvements.