CA SB1266

Declares that greenhouse gases (carbon dioxide, methane, nitrous oxide, and hydrofluorocarbons) are air pollutants that endanger public health and welfare under California law

Requires all state agencies implementing statutes related to air quality, climate change, transportation, energy, or public health to enforce those laws consistent with this endangerment finding

Establishes this declaration as an exercise of California's independent state authority under the Tenth Amendment, separate from any federal Clean Air Act determinations

Adds Section 38502 to the Health and Safety Code as part of the California Global Warming Solutions Act framework

Requires no appropriation and includes a fiscal committee review; passes with majority vote