Using ISSB Industry-based Guidance when applying ISSB Standards
SustainabilityOn 10 July 2025, the IFRS Foundation published educational material about using ISSB Industry-based Guidance when applying ISSB Standards.
The Final Rules, that were proposed two years earlier in March 2022, generated a huge response. Over 4,500 unique comment letters and 18,000 form letters were submitted to influence and support ‘The Enhancement and Standardisation of Climate-Related Disclosures for Investors’.
The SEC’s efforts to issue these new rules are the result of investor demands for consistent, reliable, and comparable information regarding climate-related risks. More specifically, these Final Rules set out the information needed to help investors assess how climate risks affect a registrant’s business and financial condition, and assess the registrant’s management and board oversight of its climate-related risks.
What distinguishes the SEC requirements from those issued by other sustainability standard setters, most notably the IFRS Sustainability Disclosure Standards (IFRS SDS) issued by the International Sustainability Standards Board (ISSB) and the European Sustainability Reporting Standards (ESRS) as required by the Corporate Sustainability Reporting Directive (CSRD) in the European Union, is that there is no requirement to disclose Greenhouse Gas (GHG) Scope 3 emissions.
The Final Rules set out in a new subpart 1500 of Regulation S-K and Article 14 of Regulation S-X require reporting entities to make robust climate-related disclosures, which include details of:
If required to disclose Scope 1 and Scope 2 emissions, reporting entities are required to obtain an assurance report at the limited assurance level which, after an additional transition period, will move to being reasonable assurance for a LAF (Lightweight Auditing Framework).
Although the new rules require climate-related disclosures, there are significant differences between the Final Rules and the IFRS SDS and the ESRS in several main areas. Below is a snapshot of some of these differences:
| SEC Rules (US) | ESRS (EU) | IFRS SDS (Global) | |
|---|---|---|---|
|
Required for
|
SEC registrants
|
Entities subject to CSRD requirements
|
Any entity in jurisdictions that adopt the IFRS Sustainability Disclosure Standards and optional for any other entity
|
|
Estimated number of entities that will be affected
|
Less than 10,000
|
More than 50,000
|
Depends on sustainability legislation in each country that adopt IFRS SDS
|
|
GHG emissions that must be reported
|
Scopes 1 and 2, if they are deemed material
|
Scopes 1, 2, and 3
|
Scopes 1, 2, and 3
|
|
First annual reporting period subject to these requirements
|
2025
|
2024
|
2024
|
|
Executive remuneration disclosures
|
Not required unless it is deemed material to filer
|
Required if it is linked to climate-related matters
|
Required if it is linked to climate-related matters
|
|
Assessment of materiality
|
Financial statement materiality (single)
|
Financial statement materiality and impact materiality (double)
|
Financial statement materiality (single)
|
|
Alignment to the TCFD framework
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Aligned to its pillars, but with a different structure and not all recommendations taken up
|
Broadly aligned to its elements but it is structured differently
|
Closely aligned, adding more depth and guidance to what is set out in TCFD
|
These new rules apply to all SEC registrants. The SEC has implemented a phased-in approach for complying with the new rules based on registration filing status.
In addition to the phased-in approach by filing status, the SEC has also implemented a phased-in approach for certain more complex requirements in deference to the additional time needed for registrants to comply.
These three items, as well as the assurance requirements, will come into effect at the specified later dates.
This table illustrates the compliance dates required for each type of filer and requirement, with the date indicating that compliance is required in the financial year beginning in the calendar year listed.
| Registrant Type | Disclosure and Financial Statements | GHG Emission/assurance | Electronic tagging | |||
|---|---|---|---|---|---|---|
|
All Regulation S-K and S-X disclosures, other than as noted in this table
|
Item 1502(d)(2), Item 1502(e)(2), and Item 1504(c)(2)
|
Item 1505 (Scopes 1 and 2 GHG emissions)
|
Item 1506 - Limited Assurance
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Item 1506 - Reasonable Assurance
|
Inline XBRL tagging for subpart 1500
|
|
|
LAFs
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2025
|
2026
|
2026
|
2029
|
2033
|
2026
|
|
AFs (Other than Smaller Reporting Companies (SRC) and Emerging Growth Companies (EGC))
|
2026
|
2027
|
2028
|
2031
|
N/A
|
2026
|
|
SRC, EGC and Non-accelerated Filers (NAF)
|
2027
|
2028
|
N/A
|
N/A
|
N/A
|
2027
|
Reporting entities in scope of the Final Rules should start getting ready to comply as soon as possible. These rules will require the collection of data that entities may not yet be able to collect due to system or process restrictions and involve topics that many entities may not yet have expertise in. Due to these complexities, it may take longer than anticipated to prepare the required disclosures and prompt action should enable registrants to comply in a timely manner as the deadlines set are demanding.
We welcome the adoption of these Final Rules because they are a first step towards U.S. public companies providing climate-related information to both investors and global entities that are involved in their value chains. These Final Rules will further improve the transparency of U.S. public company reporting on climate-related matters which are increasingly becoming of great interest to investors.
The extent of climate related disclosures that are set out in these Final Rules in many instances will require registrants to build new systems and controls, so there is likely to be a significant increase in compliance costs, not only in the first year of application, but in subsequent periods as well.
On 10 July 2025, the IFRS Foundation published educational material about using ISSB Industry-based Guidance when applying ISSB Standards.
The IFRS Foundation has published guidance on disclosures about transition plans and jurisdictional profiles to help support the implementation of IFRS SDS.
The IFRS Foundation has published educational material on Greenhouse Gas disclosure requirements in IFRS S2.
The IFRS Foundation has published its first IFRS SDS guide, which aims to provide practical guidance on how to report climate-only information when utilising the ‘climate-first’ transition relief option.
On 2 May 2024, the long-awaited and highly anticipated interoperability guidance has been jointly issued by the IFRS Foundation and European Financial Reporting Advisory Group (EFRAG).
On 26 June 2023 the International Sustainability Standards Board (ISSB) released its first two International Sustainability Disclosure Standards (IFRS SDS or the Standards) that become effective for periods beginning on or after 1 January 2024. Get to know here what they are about and how they arose.
At its April meeting, the International Sustainability Standards Board (ISSB) decided to add to the transitional reliefs already proposed in relation to the adoption of its first two Sustainability Standards – IFRS S1 ‘General Requirements for Disclosure of Sustainability-related Financial Information’ and IFRS S2 ‘Climate-related Disclosures’.