Coffey continued: “The final SEC rule requires assurance over greenhouse gas emissions, with some companies obligated to move from limited to reasonable assurance over time. We believe CPAs are best suited to undertake these engagements, especially when making connections back to a company’s financial statements.

“Our ongoing research with the International Federation of Accountants underscores the detrimental impact of inconsistent, fragmented reporting on climate-related disclosures. We strongly support adoption of a global baseline of sustainability standards issued by the International Sustainability Standards Board (ISSB). As other jurisdictions around the world begin to integrate ISSB standards into their disclosure rules, U.S. companies would benefit from the SEC’s acceptance of their use.”

Large public companies will be required to say more in their financial statements about the risks climate change poses to their operations and their own contributions to the problem. But the version approved on Wednesday is weaker than an earlier draft. After intense lobbying following the SEC issuing the proposed rule two years ago, companies now won’t have to report Scope 3 emissions, or the climate pollution that happens outside a business’s own operations or energy use.

Companies, business groups, and others had vehemently opposed requiring Scope 3 emissions, arguing that quantifying such emissions would be difficult, especially in getting information from international suppliers or private companies, according to the Associated Press.

In the weeks ahead, the AICPA and CIMA said they will be devoting considerable resources to help CPAs and management accountants understand the new SEC rules, including a webcast next month on its implications.