
SEC final rules on climate-related disclosures
On 6 March 2024, the SEC adopted final rules on climate-related disclosures. These long-awaited rules set out what climate-related information US-listed companies, including foreign private issuers, are required to disclose in their annual reports and registration statements filed with the SEC. This broadly includes disclosure of material climate-related risks and impacts on strategy, business model and outlook, board and management oversight of climate-related risks, risk management, climate-related targets and goals, Scopes 1 and 2 greenhouse gas ("GHG") emissions, and financial statement disclosures. Notably, the key differences from the proposed rules include the elimination of Scope 3 GHG emissions disclosure requirements, limitation of Scopes 1 and 2 GHG emissions disclosure to certain filers and only if such emissions are material, and elimination of climate-related board of directors' expertise disclosure requirement.
On 4 April 2024, the SEC voluntarily stayed the rules pending the completion of judicial review by the US Court of Appeals for the Eighth Circuit, where legal challenges to the rules brought by several interested stakeholders have been consolidated. Pursuant to the SEC's order staying the rules, the effective date of the rules is delayed indefinitely. However, the SEC's order does not delay the compliance dates under the rules and absent additional guidance by the SEC or the Eighth Circuit, the compliance dates would remain the same if the Eighth Circuit were to uphold the rules, under which reporting would first begin in 2026 by large accelerated filers for the 2025 fiscal year.

Climate reporting developments at state level
Amid uncertainty with respect to the fate of the SEC climate disclosure rules, certain individual states have continued pushing forward on climate-related disclosures.
On 27 September 2024, California Governor Gavin Newsom signed into law Senate Bill 219 ("SB 219"), which makes certain amendments to Senate Bills 253 ("SB 253") and 261 ("SB 261") introduced in 2023. The third California climate bill, Assembly Bill 1305 ("AB 1305") was not amended. SB 219 does not substantively change the climate disclosure framework set out under SB 253 and SB 261, but rather clarifies questions regarding those laws, including by granting the California Air Resources Board until 1 July 2025 to adopt implementing regulations relating to the disclosure of GHG emissions.
SB 253 requires US companies with more than $1 billion in annual revenue that do business in California to report Scopes 1 and 2 GHG emissions annually beginning in 2026, and Scope 3 GHG emissions beginning in 2027. SB 261 requires US companies with more than $500 million in annual revenue that do business in California to biennially prepare and disclose a climate-related financial risk report beginning in 2026. AB 1305 mandates disclosures about emissions reduction claims and voluntary carbon offsets by any company that makes emissions claims within California or that purchases, uses, markets or sells voluntary carbon offsets within California and first disclosures must be made by 1 January 2025.
SB 253 and SB 261 are currently subject to an ongoing legal challenge in the US District Court for the Central District of California. On 5 November 2024, the District Court denied the plaintiffs' motion for summary judgment for impermissibly compelling speech in violation of the First Amendment. While the litigation continues to discovery, the implementation of the rules is not stayed pending the outcome of the litigation. In December 2024, the California Air Resources Board exercised enforcement discretion to not take enforcement action against companies for incomplete reporting of Scopes 1 and 2 GHG emissions for the first report due in 2026, as long as they make a good faith effort to retain all data relevant to emissions reporting.
New York and Illinois are also in the process of developing their own mandatory climate disclosure laws. New York’s Senate Bill S897A would require any business entity that does business in New York with more than $1 billion in annual revenue to annually disclose Scopes 1, 2 and 3 emissions. Similarly, Illinois' House Bill 4268 would require US entities doing business in Illinois with more than $1 billion in annual revenue to annually disclose and verify their Scopes 1, 2 and 3 GHG emissions.
On the other hand, Florida Governor Ron DeSantis announced in 2024 that Florida will begin enforcing violations of its anti-ESG legislation, HB 3, that was adopted in 2023. Under HB 3, among other requirements, any asset manager that invests Florida public funds must make investment decisions based solely on "pecuniary factors", which does not include the consideration of "social, political, or ideological interests." Meanwhile, in Texas, a nonprofit organization, the American Sustainable Business Council, has filed a lawsuit against the state to block a state law that restricts Texas from investing in or contracting with businesses that support reducing reliance on fossil fuels.

Diversity disclosure rules
With regards to the "G" in ESG regulation in the US, the Nasdaq's board diversity rules were vacated by the US Court of Appeals for the Fifth Circuit in December 2024. The Fifth Circuit held that the SEC exceeded its statutory authority when it approved the rules, which required Nasdaq-listed companies to (i) publish a matrix reflecting company boards’ gender and racial/ethnic composition and (ii) have a minimum number of women and diverse directors or explain why such diversity is not present. Nasdaq notified listed companies that it respects the Fifth Circuit's decision and does not intend to seek further review.