The APCTVC Mobile Sources Verification Program Sample Clauses

The APCTVC Mobile Sources Verification Program. The various retrofit technologies have been divided into three groups to facilitate ETV: • SCR systems, • retrofit diesel mobile source control devices, and • fuel and lubricant technologies. Selective catalytic reduction is an emissions control technology that reduces NOx by injecting a controlled amount of a reductant (usually urea or ammonia) into the gaseous exhaust stream ahead of a catalyst. In its simplest form, an SCR system includes a reductant storage and injection system, a control unit, and one catalyst. 1RTI International is a trade name of Research Triangle Institute. This GVP provides the requirements for APCTVC’s verification of the performance of SCR applied to mobile and stationary source diesel engines. Other organizations (e.g., EPA’s Office of Transportation and Air Quality [OTAQ] and the California Air Resources Board [CARB]) also verify the performance of SCR to meet the needs of those organizations. The technology applicant should discuss the intended application of the SCR with OTAQ to determine the most suitable path for verification. This GVP is intended to apply only to SCR. The APCTVC reserves the right to evaluate each technology submitted for verification and to determine the applicability of this protocol to that specific technology. Regulatory authorities (OTAQ and others) may also have different requirements. Special testing may be required in some cases to maintain the integrity, credibility and, therefore, the value of verifications. The critical data quality objectives (DQOs) in this document were chosen to provide emissions measurements sufficient to support the vendor’s application for emissions credits under the Voluntary Diesel Retrofit Program (VDRP). This protocol was developed and has been reviewed by a technical panel composed of a broad group of stakeholders who have expertise in mobile source controls and come from the vendor, user, and regulatory spheres. Technical panel membership is dynamic, and its composition is expected to change over time as technical emphases change. The APCTVC will maintain membership balance on the panel. The basic SCR verification will measure and report baseline emissions concentrations and rates using the federal test procedures (FTPs) applicable to a particular engine or vehicle on a baseline fuel compared to that same engine or vehicle equipped with SCR. The number of engines and the test requirements will differ depending on the engine applicability and nature of the SCR. The t...