• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
EnvironmentCalifornia

California legislators approve America’s most expansive greenhouse gas emissions disclosure rules for big business

By
Sophie Austin
Sophie Austin
and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
Sophie Austin
Sophie Austin
and
The Associated Press
The Associated Press
Down Arrow Button Icon
September 12, 2023, 5:24 AM ET
A man pushes a stroller near the AES power plant in Redondo Beach, Calif., on Sept. 7, 2022.
A man pushes a stroller near the AES power plant in Redondo Beach, Calif., on Sept. 7, 2022. Jae C. Hong—AP

Major corporations from oil and gas companies to retail giants would have to disclose their direct greenhouse gas emissions as well as those that come from activities like employee business travel under legislation passed Monday by California lawmakers, the most sweeping mandate of its kind in the nation.

Recommended Video

The legislation would require thousands of public and private businesses that operate in California and make more than $1 billion annually to report their direct and indirect emissions. The goal is to increase transparency and nudge companies to evaluate how they can cut their emissions.

“We are out of time on addressing the climate crisis,” Democratic Assemblymember Chris Ward said. “This will absolutely help us take a leap forward to be able to hold ourselves accountable.”

The legislation was one of the highest profile climate bills in California this year, racking support from major companies that include Patagonia and Apple, as well as Christiana Figueres, former executive secretary of the United Nations convention behind the 2015 Paris climate agreement.

The bill would still need final approval by the state Senate before it can reach Democratic Gov. Gavin Newsom. Lawmakers backing the bill say a large number of companies in the state already disclose some of their own emissions. But the bill is a controversial proposal that many other businesses and groups in the state oppose and say will be too burdensome.

Newsom declined to share his position on the bill when asked last month. His administration’s Department of Finance opposed it in July, saying it would likely cost the state money that isn’t included in the latest budget. Newsom has advanced California’s role as a trendsetter on climate policies by transitioning the state away from gas-powered vehicles and expanding wind and solar power. By 2030, the state has set out to lower its greenhouse gas emissions by 40% below what they were in 1990.

State Sen. Scott Wiener, a San Francisco Democrat who introduced the disclosure bill, said in a statement that it would allow California to “once again lead the nation with this ambitious step to tackle the climate crisis and ensure corporate transparency.”

California has a lot of big companies that manufacture, export and sell everything from electronics to transportation equipment to food, and most every major company in the country does business in the state, which is home to about one in nine Americans. Newsom often boasts about the state’s status as one of the world’s largest economies.

The policy would require more than 5,300 companies to report their emissions, according to Ceres, a nonprofit policy group supporting the bill.

About 17 states, including California, have inventories requiring large polluters to disclose how much they emit, according to the National Conference of State Legislatures. California’s climate disclosure bill would be different because of all the indirect emissions companies would have to report. Additionally, companies would have to report based on how much money they make, not how much they emit.

The U.S. Securities and Exchange Commission proposed rules that would make public companies disclose their emissions, up and down the supply chain. But the California bill would go beyond that, by mandating that both public and private companies report their direct and indirect emissions.

Companies would have to report indirect emissions including those released by transporting products and disposing waste. For example, a major retailer would have to report emissions from powering its own buildings, as well as those that come from delivering products from warehouses to stores.

Opponents of the bill say it is not feasible to accurately account for all of the mandated emissions from sources beyond what companies are directly responsible for.

“We’re dealing with information that’s either unreliable or unattainable,” said Brady Van Engelen, a policy advocate at the California Chamber of Commerce.

The chamber, which advocates for businesses across the state, is leading a coalition that includes the Western States Petroleum Association, the California Hospital Association and agricultural groups, in opposing the bill. They argue many companies don’t have enough resources or expertise to accurately report emissions and say the legislation could lead to higher prices for people buying their products.

Hundreds of companies in California already have to disclose their direct emissions through the state’s cap and trade program, said Danny Cullenward, a climate economist and fellow at the University of Pennsylvania’s Kleinman Center for Energy Policy. The decade-old program, which allows large emitters to buy allowances from the state to pollute and trade them with other companies, is one of the largest in the world.

Cullenward said the disclosure bill could lead to similar proposals in other states as federal regulators, faced with possible lawsuits in the future over disclosure mandates, “are going to be under pressure to not overreach.”

Supporters of the disclosure bill acknowledge it’s not a “perfect” solution that would guarantee flawless emissions reports. But they say it’s a starting point. California Environmental Voters, which supports the bill, says the legislation would put pressure on companies to move faster in lowering their emissions.

“Our state can’t just take 2023 off in terms of climate action,” said Mary Creasman, the group’s chief executive officer.

The California Air Resources Board would have to approve regulations by 2025 to implement the bill’s requirements. Companies would have to begin publicly disclosing their direct emissions annually in 2026 and start annually reporting their indirect emissions starting in 2027. Companies would have to hire independent auditors to verify their reported emissions releases. The state would not penalize companies for unintentional mistakes they make in reporting a portion of their indirect emissions.

A similar proposal introduced last year passed the state Senate but failed in the Assembly. Wiener, the San Francisco Democrat who introduced the legislation both years, has said proponents of the bill built a stronger coalition this year to have a better outcome.

A key committee in the state Assembly blocked legislation earlier this year that would have sped up the state’s timeline for reducing greenhouse gas emissions. Lawmakers are also weighing a bill that would require companies making more than $500 million annually to disclose how climate change could hurt them financially.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Authors
By Sophie Austin
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon

Latest in Environment

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Most Popular

placeholder alt text
Success
After decades in the music industry, Pharrell Williams admits he never stops working: ‘If you do what you love everyday, you’ll get paid for free'
By Emma BurleighFebruary 3, 2026
3 days ago
placeholder alt text
Politics
Peter Thiel warns the Antichrist and apocalypse are linked to the ‘end of modernity’ currently happening—and cites Greta Thunberg as a driving example
By Nick LichtenbergFebruary 4, 2026
2 days ago
placeholder alt text
Investing
Ray Dalio warns the world is ‘on the brink’ of a capital war of weaponizing money—and gold is the best way for people to protect themselves
By Sasha RogelbergFebruary 4, 2026
2 days ago
placeholder alt text
C-Suite
OpenAI’s Sam Altman says his highly disciplined daily routine has ‘fallen to crap’—and now unwinds on weekends at a ranch with no cell phone service
By Jacqueline MunisFebruary 5, 2026
23 hours ago
placeholder alt text
Economy
Trump is giving the U.S. economy a $65 billion tax-refund shot in the arm, mostly for higher-income people, BofA says
By Nick LichtenbergFebruary 5, 2026
24 hours ago
placeholder alt text
Investing
Tech stocks go into free fall as it dawns on traders that AI has the ability to cut revenues across the board
By Jim EdwardsFebruary 4, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Latest in Environment

sam wolf
Commentaryactivist investing
Activist investors are more dangerous to CEOs than ever. Here are 3 ways to safeguard your leadership
By Sam WolfFebruary 5, 2026
1 day ago
Nevada Assemblyman Howard Watts
LawThe Boring Company
Key Nevada legislator says lawmakers will push for independent audit of altered public record in Nevada OSHA’s Boring Company inspection 
By Jessica MathewsFebruary 4, 2026
2 days ago
electricity
EnvironmentElectricity
Over a million people are losing power during a freezing snowstorm while data centers nearby guzzle electricity
By Nikki Luke, Conor Harrison and The ConversationFebruary 4, 2026
2 days ago
thiel
PoliticsBillionaires
Peter Thiel warns the Antichrist and apocalypse are linked to the ‘end of modernity’ currently happening—and cites Greta Thunberg as a driving example
By Nick LichtenbergFebruary 4, 2026
2 days ago
rubio
EconomyTariffs and trade
JD Vance appeals to allies for new ‘trading bloc’ that keeps Trump’s tariffs in place, secures access to rare earths
By Didi Tang, Josh Funk, Matthew Lee and The Associated PressFebruary 4, 2026
2 days ago
Aerial image of the first offshore wind farm in the U.S., off the coast of Rhode Island.
EnergyRenewables
Trump hates the way wind farms look. Too bad, America’s court system says
By Tristan BoveFebruary 3, 2026
3 days ago