California Proposition 45 would amend the California Environmental Quality Act to create expedited timelines and narrower review standards for designated essential projects, including most housing, clean energy, transportation, water infrastructure, and public facilities. Business and housing coalitions back the measure to reduce permitting delays and litigation costs that have slowed development. Environmental organizations and some local governments oppose it, arguing the changes would limit alternatives analysis and judicial oversight without fully preserving community input. With the November 3, 2026 election approaching, trader sentiment reflects this divide between growth priorities and regulatory safeguards, alongside early campaign positioning and fiscal impact estimates that project short-term implementation costs offset by longer-term administrative savings. Recent state emergency declarations on permitting have not directly altered the proposition's trajectory.