SB 253 Scope 1 and 2 disclosures are due August 10, 2026, with assurance requirements phasing in from 2027 — and most companies are not execution-ready. This guide covers the complete path: readiness diagnostic, 8-step checklist, 12-month execution timeline, audit failure analysis, SB 261 deep dive, and Scope 3 supplier playbook.
Download the SB 253 & SB 261 Compliance Playbook to move from where you are today to disclosures that are complete and defensible.
