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San Joaquin Valley Air Pollution Control District Page 6 District Reference No.20210676 July 14,2021 1 i) Ambient Air Quality Analysis An ambient air quality analysis (AAQA) uses air dispersion modeling to determine if emissions increases from a project will cause or contribute to a violation of the ambient air quality standards. For development projects the District recommends that an AAAA be performed for the project if emissions exceed 100 pounds per day of any pollutant. If an AAQA is performed, the analysis should include emissions from both project specific permitted and non-permitted equipment and activities. The District recommends consultation with District staff to determine the appropriate model and input data to use in the analysis. Specific information for assessing significance, including screening tools and modeling guidance is available online at the District's website www.valley ir.org/cega. 1j) Voluntary Emission Reduction Agreement If the Project is expected to have a significant impact, the District recommends the environmental document/assessment also include a discussion on the feasibility of implementing a Voluntary Emission Reduction Agreement (VERA) for this project. A VERA is a mitigation measure by which the project applicant provides pound- for-pound mitigation of emissions increases through a process that develops, funds, and implements emission reduction projects, with the District serving a role of administrator of the emissions reduction projects and verifier of the successful mitigation effort. To implement a VERA, the project applicant and the District enter into a contractual agreement in which the project applicant agrees to mitigate Project specific emissions by providing funds for the District's incentives programs. The funds are disbursed by the District in the form of grants for projects that achieve emission reductions. Thus, project-specific regional impacts on air quality can be fully mitigated. Types of emission reduction projects that have been funded in the past include replacement of old heavy-duty trucks with new, cleaner, heavy- duty trucks, electrification of stationary internal combustion engines (such as agricultural irrigation pumps), and replacement of older school buses. In implementing a VERA, the District verifies the actual emission reductions that have been achieved as a result of completed grant contracts, monitors the emission reduction projects, and ensures the enforceability of achieved reductions. After the project is mitigated, the District certifies to the Lead Agency that the