The ISR Rule applies to two categories of projects: development and transportation or transit projects that meet any of applicability criteria listed below. Projects subject to the ISR Rule are required to submit an Air Impact Assessment (AIA) application no later than applying for a project-level approval from a public agency.
District Rule 9510 applies to any applicant that seeks to gain a final discretionary approval for a development project, or any portions thereof, which upon full build-out will include any one of the following:
Additionally, District Rule 9510 applies to any applicant that seeks to gain approval from a public agency for a large development project, which upon full build-out will include any of the following:
Any transportation or transit project where construction exhaust emissions equal or exceed two (2.0) tons of NOx or two (2.0) tons of PM10.