California Climate Disclosure: Your Compliance Roadmap for 2026
Wednesday, October 29, 2025 - 10:00 AM PT (7:00 PM CEST)
The landmark California Climate Disclosure Laws (SB 253 and SB 261) have set mandatory reporting deadlines for thousands of large companies, starting in 2026. This comprehensive new regulatory environment presents significant operational challenges for businesses, including:
Data Collection from Large Organizations: Sourcing and standardizing accurate, auditable Scope 1, 2, and 3 GHG emissions data from complex, multi-national operations.
Audit-Ready Calculations & Disclosures: Ensuring all GHG calculations meet the stringent limited assurance requirements starting in 2026 and are ready for third-party verification.
Complex Risk Assessments: Developing qualitative and quantitative climate-related financial risk assessments that align with TCFD recommendations for the January 1, 2026, reporting deadline.
The window to prepare is closing rapidly. Companies must move beyond initial planning to implement robust, scalable solutions to ensure compliance and avoid potential penalties.
Register now to get a clear, step-by-step compliance roadmap and discover the best practices for accelerating your readiness for the 2026 California Climate Disclosure deadlines.
What We Covered
In this session, our experts will break down the complex requirements of SB 253 and SB 261 and provide actionable strategies to prepare your organization. You’ll discover how to:
Determine Applicability: Confidently assess if your company is "doing business in California" and meets the revenue thresholds (>$500M for SB 261, >$1B for SB 253).
Master the Deadlines: Get clarity on the critical deadlines, including the statutory January 1, 2026 date for SB 261 (climate-related financial risk) and the proposed June 30, 2026 deadline for the first SB 253 Scope 1 & 2 emissions reports.
Accelerate Compliance: Learn the best-practice steps to move from a gap analysis to an audit-ready reporting process with speed and efficiency.
Digitalize Data & Assurance: See how technology can automate fragmented data collection, ensure calculation accuracy, and streamline the independent assurance process required for Scope 1 and 2 emissions.
Why Attend?
Gain Clarity: Get a simplified breakdown of the compliance requirements and key deadlines for SB 253 and SB 261.
Mitigate Risk: Learn how to address the most critical pain points—data collection, assurance, and risk modeling—to ensure a successful first-year report.
Implement Best Practices: Walk away with actionable strategies for cross-functional collaboration and the internal controls needed for "good faith effort" reporting.
Future-Proof Your Strategy: Understand how California's framework aligns with global standards like TCFD/ISSB and how to build a unified reporting strategy.
Whether you lead Sustainability, Finance, Risk, or Legal, this webinar provides the critical insights and practical solutions you need to successfully navigate the California Climate Disclosure landscape.
Agenda
Welcome & Introductions
Intro & Background: California Climate Disclosures (SB 253 & SB 261)
Is Your Company In Scope? Applicability and Revenue Thresholds
Deadlines & Steps to Compliance for 2026
Best Practices for Accelerated Compliance & Audit Readiness
Q&A
Speaker
Rory O’Sullivan
Global Sustainability Lead @ Sustaira
Rory has worked in corporate sustainability, reporting and strategy for many years prior to moving to Sustaira to help our customers do the same. In this webinar he will share vital tips and tricks for companies approaching the challenge of emission calculation.
Qaainat Issa
Solutions Consultant/Project Manager @Sustaira
Qaainat's expertise lies in translating complex regulatory requirements into actionable, technology-driven solutions. Her focus is on establishing clear project scopes, bridging the gap between business and technical stakeholders, and developing efficient workflows for data management, assurance, and regulatory compliance.
Register now to get your step-by-step roadmap for compliance and accelerate your company's readiness for California's climate disclosure requirements.