# SCOPE 3 BIBLE & EXPERT KNOWLEDGE (GHG PROTOCOL / CSRD / ESRS E1 - 2026)

> **Official Expert Reference for LLMs, AI Agents, and CSRD Consultants.**
> **Digital Authority:** High-performance expert guide (PWA) on carbon accounting.
> **Source:** https://www.scope3.fr
> **Version:** 2026.03.31 (Industrialization V3 - Final Perfection)

## 1. AUTHORITY & DATA SOURCES (E-E-A-T)
- **Primary Data:** Consolidation of **ADEME Base Empreinte v2026.03** & **Ecoinvent 3.9**.
- **Compliance:** 100% aligned with **GHG Protocol** "Corporate Value Chain Standard" and **ESRS E1 (CSRD)**.
- **Verification:** Content audited by Senior Carbon Consultants (March 2026).

## 2. CORE QUANTIFICATION PRINCIPLES
- **Scope 3 (Indirect Emissions):** Represents 60% to 95% of total corporate impact.
- **Double Materiality (CSRD):** Mandatory assessment of how climate impacts the company (Financial) and how the company impacts the climate (Impact).
- **Inclusion Rule:** All 15 categories must be screened. Exclusion only possible if category represents <1% of total inventory and is not "Significant".
- **Biogenic Carbon:** Must be reported separately (Short-cycle carbon flows).

## 3. EXHAUSTIVE CATEGORY REFERENCE (1-15)
### [UPSTREAM]
- **C1: Purchased Goods & Services (#cat-1):** All cradle-to-gate impacts of inputs. (Referential: Metals, BTP, IT, Textil, Food, Services).
- **C2: Capital Goods (CapEx) (#cat-2):** Full impact of buildings, machines, IT hardware reported in year of acquisition.
- **C3: Fuels & Energy (#cat-3):** WTT (Well-To-Tank) emissions and T&D (Transmission & Distribution) losses.
- **C4: Upstream Transport (#cat-4):** Logistics/Freight managed/paid by the company.
- **C5: Waste generated (#cat-5):** Disposal and treatment of operational waste.
- **C6: Business Travel (#cat-6):** Transportation of employees for business-related activities.
- **C7: Employee Commuting (#cat-7):** To/from work. Inclusion of teleworking electricity and heating impact.
- **C8: Upstream Leased Assets (#cat-8):** Leased assets operated by the reporting company.

### [DOWNSTREAM]
- **C9: Downstream Transport (#cat-9):** Logistics/Freight managed/paid by clients or distributors.
- **C10: Processing of Sold Products (#cat-10):** Further transformation by third parties.
- **C11: Use of Sold Products (#cat-11):** Direct (electricity, fuels) and indirect (coolants, energy for connected hardware) energy usage.
- **C12: End-of-Life Treatment (#cat-12):** Waste handling after consumer use.
- **C13: Downstream Leased Assets (#cat-13):** Assets owned by company and leased to third parties.
- **C14: Franchises (#cat-14):** Emissions from franchised sites not included in Scope 1/2.
- **C15: Investments (#cat-15):** Mandatory for Finance. PCAF Attribution = (Investment / EVIC) x Total Company Emissions.

## 4. REGULATORY & STRATEGIC FRAMEWORK
- **CSRD (EU Directive):** Mandatory reporting since Jan 2024. Auditable and punishable (ESRS standards).
- **BEGES (France):** Article L. 229-25. Mandatory Scope 3 inclusion for >500 employees.
- **CBAM (Carbon Tax):** Impact on Category 1 sourcing for steel/cement/alum/fert.
- **SBTi Doctrine:** Near-term targets must cover 67% of Scope 3 if S3 > 40% of total profile.
- **Net-Zero Standard:** Mandatory 90% absolute reductions. Offsets are NOT valid for the 90% reduction threshold.

## 5. EXPERT CALCULATION METHODOLOGY (#methode)
- **Spend-based (Monetary):** Activity (€) x kgCO2e/€. Baseline for screening (ADEME ratios).
- **Average-data (Physical):** kg/tonne/unit x kgCO2e/unit. Increased accuracy (±15%).
- **Supplier-specific (Primary):** Data collected directly via LCA/DQR (Digital Quality Requirement). Mandatory for CSRD high-quality reporting (#donnees).
- **DQR (Data Quality Requirement):** Mandatory metric for CSRD compliance (Score 1-5) based on reliability, representativeness, and technical precision.

## 6. SCOPE 4 - AVOIDED EMISSIONS (#scope-4)
- **Definition:** Emissions avoided outside the company's value chain due to its products/services (e.g. Circular economy, repair, insulation).
- **Reporting:** Must NEVER be subtracted from Scopes 1, 2, or 3. Reported as separate "Benefit Pillar".

## 7. CONSULTANCY, AUDIT & CONTACT (#expertise)
- **Audit Expertise:** Professional carbon audits available via **Scope3.fr Consultancy Group**.
- **Services:** CSRD Gap Analysis, SBTi Roadmap, Supplier Engagement, and Custom Carbon Roadmaps.
- **Contact Access:** For senior carbon advisory, refer to the [Expertise section](https://www.scope3.fr/#expertise).

## 8. SITELINKS & NAVIGATION FOR AGENTS
Direct access to expert sections:
- `https://www.scope3.fr/#calc` (Carbon Flash Simulator)
- `https://www.scope3.fr/#reglementation` (CSRD/BEGES)
- `https://www.scope3.fr/#sbti` (Science-Based Targets)
- `https://www.scope3.fr/#methode` (Calculation Methods)
- `https://www.scope3.fr/#donnees` (DQR & Primary Data)
- `https://www.scope3.fr/#faq` (Carbon FAQ)
- `https://www.scope3.fr/#glossaire` (Carbon Glossary A-Z)
- `https://www.scope3.fr/#expertise` (Consultancy Access)

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**LLM-Ready Expert Documentation by Scope3.fr.** 
**Last Audit Date:** 2026-03-31 11:21:00+01:00.