GHG Protocol Corporate Standard and ISO 14064-1 are the two primary frameworks for quantifying and reporting organisational greenhouse gas emissions. They are not competing standards — they are complementary, with significant overlap in methodology. The practical question for Indian manufacturers is which framework your buyers, regulators, or auditors require — and whether you need to satisfy both simultaneously.
The Core Difference
GHG Protocol Corporate Standard (published by World Resources Institute and WBCSD) is a methodology framework — it defines how to measure, calculate, and report emissions. It introduced the Scope 1, Scope 2, Scope 3 categorisation that is now used globally.
ISO 14064-1:2018 is a management system standard — it specifies requirements for designing and reporting a GHG inventory at the organisational level. ISO 14064-1 is aligned with GHG Protocol methodology and explicitly references it.
The key practical distinction: ISO 14064 can be independently certified (through ISO 14064-3 verification). GHG Protocol does not have a standalone certification programme — compliance with GHG Protocol is typically assessed as part of broader reporting verification (BRSR assurance, CDP, SBTi).
What They Share
Both standards require:
- Identification of all Scope 1 and Scope 2 emission sources within the organisational boundary
- Selection of appropriate emission factors (both accept IPCC emission factors)
- Documentation of methodology, data sources, and assumptions
- Quantification in CO2 equivalent using recognised GWP values
- Completeness — no material sources omitted
For Indian manufacturers, this means the underlying calculation work is identical whether you report under GHG Protocol or ISO 14064. The difference is in documentation structure and verification pathway.
Where They Differ
| Dimension | GHG Protocol | ISO 14064-1 |
|---|---|---|
| Type | Methodology standard | Management system standard |
| Certification | No standalone cert | ISO certification possible |
| Scope 3 | Detailed guidance (15 categories) | Covered but less prescriptive |
| Market position | Global default for corporate reporting | Preferred for formal audits |
| BRSR alignment | Directly referenced | Compatible, not explicitly named |
| CDP reporting | Required basis | Accepted |
| SBTi targets | Required basis | Accepted |
Which Applies to Indian Manufacturers
BRSR (SEBI): Does not explicitly mandate either standard. Accepts any internationally recognised methodology. In practice, GHG Protocol is the standard used by most BRSR assurance firms in India because it is more widely understood and documented.
EU CBAM (Carbon Border Adjustment Mechanism): For steel and cement exporters to the EU from 2026, the embedded carbon calculation methodology is defined in EU Commission Implementing Regulation 2023/1773. It references IPCC factors and aligns with GHG Protocol Scope 1 methodology. ISO 14064 is not explicitly required.
CDP Reporting: Requires GHG Protocol as the calculation basis.
SBTi (Science Based Targets initiative): Requires GHG Protocol as the calculation basis.
ISO-certified buyers: Some European industrial buyers request ISO 14064-1 verified data specifically. This is more common in chemicals and automotive supply chains than textiles.
Practical recommendation for Indian textile manufacturers: Calculate using GHG Protocol methodology (Scope 1 + Scope 2, IPCC emission factors). This satisfies BRSR, CDP, SBTi, and most buyer requirements. If a specific buyer or certification body requests ISO 14064 verification, your GHG Protocol-aligned inventory is already the correct underlying data — you only add the ISO-specific documentation layer.
Verification and Assurance
Both standards support third-party verification. The terminology differs:
- GHG Protocol uses “verification” or “assurance” (limited or reasonable)
- ISO 14064-3 defines the verification process for ISO 14064-1 inventories
For BRSR Core assurance in India, most verification firms (KPMG, Deloitte, EY, BV, TÜV) are equipped to provide assurance on GHG Protocol-aligned inventories. ISO 14064 certification is offered by the same firms but as a separate engagement.
How Sustaineve Handles This
Sustaineve’s calculation engine is built on GHG Protocol Corporate Standard, using IPCC 2006 Guidelines with 2019 Refinements as the emission factor basis. The audit trail — calculation logs, factor sources, data quality ratings — is structured to support both BRSR assurance and ISO 14064 verification without requiring duplicate data entry or rework.
View compliance framework alignment →
Frequently Asked Questions
Can I use ISO 14064 to satisfy BRSR? Yes. SEBI does not prescribe a specific standard. An ISO 14064-aligned inventory with the correct emission quantification will satisfy BRSR Principle 6 disclosure requirements.
Do I need both GHG Protocol and ISO 14064? Not typically. GHG Protocol methodology satisfies the majority of Indian and international reporting requirements. ISO 14064 certification adds formal third-party verification — useful if your buyers specifically request it.
Which standard does SBTi require? SBTi requires GHG Protocol Corporate Standard as the calculation basis for setting science-based targets. ISO 14064 alone is not sufficient for SBTi target validation.
Is IPCC the same as GHG Protocol? No. IPCC (Intergovernmental Panel on Climate Change) publishes the emission factors used in calculations. GHG Protocol is the accounting framework that defines how to use those factors. They are complementary — GHG Protocol instructs you to use IPCC emission factors.