Access your briefing to
SB 253:
A clear breakdown of the November 10, 2026 deadline and what CARB expects from you
A realistic Scope 3 prep timeline so 2027 doesn't catch you off guard
Practical ways lean teams automate audit-ready reporting without adding headcount
SB 253 has extended the deadline for reporting to November 10th, 2026.
Take the breathing room, but do not use it as a pause. Especially for lean sustainability teams, it’s important to be proactive now.
Insights from us
Scope 1:
If you’ve already submitted emissions reports under CDP, that are TCFD-aligned, made ESG Disclosures or through internal GHG inventories, then the foundation of work is already there; all that needs to be solidified is your evidence trail.
Refinements to your reports would include:
Scope 2:
The focus of Scope 2 goes beyond electricity bills it covers purchased or acquired electricity, steam, heating, and cooling. The key difference is that for SB 253, Scope 2 must be reported regardless of location.
To keep Scope 2 data transparent and defensible, be ready to show:
Scope 3:
Although the deadline for Scope 3 limited assurance is 2027, the real work should be started much earlier. With 15 different categories encompassing upstream and downstream chains, and different categories weighing varying applicabilities per industry, identifying Scope 3 hotspots now will help the data collection process for later.
