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Re-assessment pendingGSOtherBrazilRegistry: RegisteredACM0001

MACAÚBAS LANDFILL GAS PROJECT

Developer: VITAL ENGENHARIA AMBIENTAL S/A

Methodology: ACM0001 (CDM)

GS-4514 ↗ · current registry ID: GS12670

Worked comparison example (English)

#441of 655 in Methane#329of 477 in Brazil#1476of 2179 in Gold Standard (GS)#182of 279 in ACM0001

Score from methodology v2.1 (analysis of 5 Sep 2026). Re-assessment under v2.2 pending.

Assessment

CarbonMeld document-based assessment

01020304 Overall 4.9 / 10
Integrity 🔒 Transparency 🔒 Claim Safety 🔒 Documentation 🔒
Dimension scores are locked — the faint arcs are empty tracks, not zero scores.

Scale 0–10 · method weights: integrity 35% · transparency 25% · claim safety 25% · documentation 15%.

Re-assessment pending · v2.1

Scored2026-09-05medium confidence

evidence: 15/21 registry documents analyzed · 4 red flags

Generated by CarbonMeld Analysis Pipeline · Methodology · Editorial Policy · About the System
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How this analysis was made

Standard
Gold Standard (GS) How our current method reads projects of this standard
Methodology
ACM0001 How our current method reads projects of this type
Our method
CarbonMeld methodology v2.1 · analysed on 5 Sep 2026 · 15/21 registry documents analyzed · re-assessment under v2.2 pending

Analysis

The Macaúbas Landfill Gas Project is a VVB-verified methane capture project with confirmed additionality, but it carries significant claim-safety concerns: the 2024 monitoring-period claim of ~1.67 MtCO₂e represents roughly 337% of the pro-rata expectation derived from the 2.48 MtCO₂e lifetime ex-ante estimate, and the 0% leakage deduction lacks a consistent justification across documents. Multiple contradictions between the verification report, monitoring report, and PDD (FPIC status, baseline type, grid emission factor, reversal events) erode confidence in the data record.

Red Flags

4 red flags detected — Unlock with Premium

Findings

Risk Indicators

Additionality

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Permanence

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Leakage

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Baseline

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Safeguards

🔒

Double-claim

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Risk indicator details are a Premium feature

Score Breakdown

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Gates applied

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Detailed Analysis

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Evidence

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On this page: the analysis of 5 Sep 2026, marked “Re-assessment pending”. Per-dimension scores, risk indicators, 4 red flags, score factors, detailed analysis, and 21 registry documents (15 analyzed).

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Eligibility & market

What can you claim with this credit?

Four checks buyers ask about, from the registry and the Integrity Council (ICVCM).

  • Airlines (CORSIA)

    Stated in the project documents

    The documents claim CORSIA eligibility, but no registry label confirms it: check vintage and authorization.

    Source: project documents (not confirmed by the registry) · documents analysed on 5 Sep 2026

    Covers: what the project documents state — not a registry record

  • Integrity label (ICVCM CCP)

    CCP-labelled credits

    The registry marks credits of this project with the Integrity Council's Core Carbon Principles label: check that the units offered carry it.

    Source: registry label · read on 2 Nov 2026

    Covers: credits of this project that carry the label on the registry — not every unit or lot

  • Removal or reduction

    Emission reduction or avoidance

    Prevents or reduces emissions — fits contribution claims, not SBTi neutralisation.

    Source: registry label · read on 2 Nov 2026

    Covers: the project type, not a label on individual credits

  • Paris Agreement (Article 6)

    Not published

    This registry does not publish Article 6 authorizations.

Information only, from public sources. Claim rules (CORSIA, SBTi, EU rules on green claims) change: check them before making a public claim. Since 27 September 2026, EU consumer rules do not allow “climate neutral” product claims based on offsets.

Registry labels last checked:2026-11-02

Credit Vintages

IssuedRetiredAvailable
2022
320,7460320,746
2023
410,6130410,613
2024
379,0350379,035
2025
189,1990189,199
Total1,299,59301,299,593

Methodology versions used

The methodology version stated in each monitoring, verification and issuance document, by period, compared with the official methodology pages.

  1. 2021–2025ACM0001 v19.0current version

    monitoring report + verification report

    official page · verified on

    in the ICVCM CCP-approved range (GS: 15.0-19.0) · official page · verified on

  • ACM0001: Active (CDM / UNFCCC) · official page · verified on

Being within an ICVCM-approved version range is information only: it does not mean these credits carry the CCP label, which the registry assigns to each issuance.

A version is shown only when the document's own text writes it next to the methodology code. Current versions, status and CCP ranges come from the official pages linked, checked on the date shown.

Documents on the registry

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Profile & governance

Methodology·Editorial Policy·About the System

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Records with the same name in other registries

Records in another registry with the same name, country and methodology. Each has its own credits, documents and score.

Similar projects

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