Common use of The APCTVC Mobile Sources Verification Program Clause in Contracts

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 tests will be conducted at an independent, third-party testing organization that has been qualified and audited by the APCTVC. The data quality requirements of this GVP will be applied at approved testing organizations through the preparation of an SCR-specific test/QA plan. Other organization-, application-, or technology-specific information may also need to be addressed in the test/QA plan, which is described in Section 10.0. Because specific technology areas may require special expertise or emphasis, input and review will be obtained from an ad hoc subcommittee of the technical panel or outside experts when deemed appropriate by the APCTVC. Test results will be presented as ETV reports and statements. This GVP will be revised as necessary. Changes to the protocol will not affect products that have been verified. However, such changes will be reflected in test/QA plans not yet finalized, regardless of the applicant’s application status. Test/QA plans that are being carried out when a protocol change is enacted will be examined to determine whether any modifications must be made. Retrofit mobile diesel control devices include exhaust treatment emission control devices, other retrofit devices, and engine modifications. Some require no mechanical changes to engines, while others will involve some modification of the engine or its control system. Filters for PM control and diesel exhaust catalysts (DECs) may make use of or require some integration with engines. Engine modifications, in this context, refer to pollution reduction technologies integral to the engine or the engine control systems. All of these technologies have the potential to affect engine performance, and the concurrence of the engine manufacturer that the changes are compatible with safe, efficient, and reliable operation in the engine is an important element in demonstrating commercial readiness and suitability for ETV. ETV of these technologies is guided by Generic Verification Protocol for Diesel Exhaust Catalysts, Particulate Filters, and Engine Modification Control Technologies for Highway and Nonroad Use Engines (APCTVC, 2002a). Retrofit fuels and lubricant technologies include fuel formulations, fuel and lubricant additives, and alternative fuels. Generally, no modification of the engine is necessary. All of these technologies have the potential to affect engine performance, and the concurrence of the engine manufacturer that the changes are compatible with safe, efficient, and reliable operation in the engine is an important element in demonstrating commercial readiness and suitability for ETV. ETV of these technologies is guided by Draft Generic Verification Protocol for Determination of Emissions Reductions Obtained by Use of Alternative or Reformulated Liquid Fuels, Fuel Additives, Fuel Emulsions, Lubricants, and Lubricant Additives for Highway and Nonroad Use Diesel Engines and Light-Duty Gasoline Engines (APCTVC, 2002b).