SB 253 deadline: November 10, 2026

A Scope 1 & 2 filing that meets CARB’s standard — done before November 10.

Modus Group helps California companies subject to SB 253 turn messy data into a compliant filing — AI-assisted, human-reviewed.

~2,600Entities on CARB’s preliminary SB 253 list
Nov 10Scope 1 & 2 filing deadline, 2026
CA-onlyWe work exclusively with California-jurisdiction clients

CARB pushed the first-year Scope 1 & 2 deadline from August 10 to November 10, 2026 — a procedural extension, not a substantive change. Most companies haven’t restarted their vendor search yet. We have.

Modus Data Intelligence

One pipeline, four stages, one filing you can stand behind.

  1. 01

    Ingest

    We pull your raw activity, utility, and fleet data — however fragmented it currently lives.

  2. 02

    Clean

    AI-assisted workflows flag gaps, outliers, and inconsistencies a manual pass would miss or take weeks to catch.

  3. 03

    Validate

    A GHG professional checks every material judgment call against GHG Protocol methodology before the filing moves forward.

  4. 04

    Report

    A CARB-ready Scope 1 & 2 filing, documented well enough to defend under audit.

Pricing

Priced for the work, not padded for the deadline.

Limited · Good-faith effort

$5,500flat

CARB grants first-year filers enforcement discretion for a good-faith effort — no third-party assurance required. This tier meets that standard: existing data, cleaned and filed correctly.

  • Activity & utility data cleaning
  • Scope 1 & 2 calculation
  • CARB-ready filing package
Early engagement rate — reverts to standard pricing after

Tier 1 · Core compliance

from$9,500

Single-entity Scope 1 & 2 data cleanup and filing support.

  • Activity & utility data cleaning
  • Scope 1 & 2 calculation
  • CARB-ready filing package

Tier 2 · Full service

from$21,500

Multi-facility data cleanup, Scope 3 readiness, and filing support.

  • Everything in Tier 1
  • Multi-facility consolidation
  • 2027 Scope 3 readiness plan
For consulting partners

Consultant one-off

Overflow capacity for consulting firms during peak season.

Defined-scope project support · Your client relationship stays yours
from$3,000

White-label retainer

Ongoing overflow capacity for consulting partners.

Priority turnaround · Dedicated capacity, no branding
$10–15K/mo
Why AI-assisted

The bottleneck was never the science. It was the spreadsheet.

Traditional approachModus Data Intelligence
Weeks of manual data reconciliationData cleaned in days, reviewed by a GHG professional
Outliers caught late, if at allGaps and outliers flagged automatically, first pass
Rush fees compound near deadlinesSpeed built into the process, not billed as an upcharge
Documentation assembled after the factAudit-ready documentation from day one

Companies that haven’t started are the ones most worth talking to right now.

s.silozi@modusgrouplabs.com

Free consultation

Tell us a little about where you are with SB 253. Your message goes straight to s.silozi@modusgrouplabs.com.