Comment Letters to Federal Aviation Administration
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CARB comments on Federal Aviation Administration information requests and plans
| Document Date | Description | Letter |
| February 2026 | CARB submitted a comment letter to the Federal Aviation Administration (FAA) on the draft Screening Information Request (SIR), for the Continuous Lower Energy, Emissions and Noise (CLEEN) Phase IV Program | CARB FAA CLEEN Comment Letter |
| March 2026 | CARB submitted a comment letter to the Federal Aviation Administration (FAA) on the Transition Plan to Unleaded Aviation Gasoline | CARB FAA Transition Plan Comment Letter |