California voters will decide Proposition 45 on November 3, 2026, an initiated statute sponsored by the California Chamber of Commerce that would amend CEQA to establish faster timelines, narrower alternatives analysis, and limited judicial review for designated essential projects in housing, clean energy, water, transportation, and related categories. Trader consensus favoring rejection at 61% reflects organized opposition from environmental organizations and labor unions, including multimillion-dollar spending against the measure by building trades groups concerned that it reduces public input, tribal consultation, and court remedies. Recent legislative CEQA updates signed in 2025 and 2026 have provided targeted streamlining through budget bills, potentially reducing urgency for the broader ballot approach. The outcome remains sensitive to turnout among swing voters and last-minute campaign dynamics before election day.