We know our clients have been following California’s climate-disclosure laws closely – including the timing of effectiveness and the various legal challenges. This update relates to a new Ninth Circuit ruling that has effectively hit “pause” on one key pillar of California’s climate-disclosure package.

On November 18, 2025, the Ninth Circuit Court granted a partial

This update covers information regarding the California Air Resources Board (CARB) rulemaking delay for California’s climate disclosure laws, SB 253 and SB 261, as well as additional new litigation challenging the constitutionality of these laws. The bottom line for companies is that despite the rulemaking delays and ongoing litigation, the laws remain valid and in