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Re-assessment pendingCDMLandfill gasBrazilRegistry: RegisteredACM0001

Manaus Landfill Gas Project

Developer: Conestoga Rovers e Associados Engenharia Ltda

CDM-4211 ↗

Worked comparison example (English)

#281of 694 in Methane#227of 500 in Brazil#2666of 5740 in CDM (UNFCCC)#114of 294 in ACM0001

Score from methodology v2.1 (analysis of 23 Sep 2026). Re-assessment under v2.2 pending.

Assessment

CarbonMeld document-based assessment

01020304 Overall 5.3 / 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

Scored2026-09-23medium confidenceLatest monitoring period ends: 2020-12-31

evidence: 10/10 registry documents analyzed · 4 red flags

Generated by CarbonMeld Analysis Pipeline · Methodology · Editorial Policy · About the System
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Analysis

The Manaus Landfill Gas Project is a CDM-registered methane capture project with a VVB-verified investment additionality test and a well-established methodology (ACM0001 v18). However, a material finding of an unregistered 170 kW biogas generator and two outstanding corrective actions (including an additionality reassessment) introduce meaningful integrity and claim-safety concerns. Several transparency fields remain unreported, and multiple contradictions across monitoring periods require careful interpretation.

Red Flags

4 red flags detected — Unlock with Premium

Findings

Risk Indicators

Additionality

🔒

Permanence

🔒

Leakage

🔒

Baseline

🔒

Safeguards

🔒

Double-claim

🔒

Risk indicator details are a Premium feature

Score Breakdown

Score factors per dimension are a Premium feature — Unlock with Premium

Detailed Analysis

The detailed per-dimension analysis is a Premium feature — Unlock with Premium

Evidence

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On this page: the analysis of 23 Sep 2026, marked “Re-assessment pending”. Per-dimension scores, risk indicators, 4 red flags, score factors, detailed analysis, and 10 registry documents (10 analyzed).

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Eligibility & market

Transactions in the CDM registry are discontinued as of 31 December 2026 (UNFCCC, checked 6 October 2026). The UNEP-CCC Article 6 Pipeline lists the transition of this activity to the Article 6.4 mechanism as approved. This page keeps the project's record and our analysis.

What can you claim with this credit?

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

  • Airlines (CORSIA)

    Not published

    This registry does not publish CORSIA eligibility per project.

  • Integrity label (ICVCM CCP)

    No ICVCM information

    No CCP label and no ICVCM decision found for this project's methodology.

  • Removal or reduction

    Emission reduction or avoidance

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

    Source: project sector

  • 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.

Credit Vintages

IssuedRetiredAvailable
2012
53,283053,283
2013
439,8620439,862
2014
583,1470583,147
2015
544,9750544,975
2016
464,2510464,251
2017
490,5640490,564
2018
275,1450275,145
2019
262,8750262,875
2020
344,9320344,932
2021
314,2420314,242
Total3,773,27603,773,276

Methodology versions used

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

  1. 2018–2019ACM0001 v18.0since replaced by v19.0

    monitoring report

    official page · verified on

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

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

  2. 2019ACM0001 v18.0since replaced by v19.0

    monitoring report

    official page · verified on

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

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

  3. 2019–2020ACM0001 v18.0since replaced by v19.0

    monitoring report

    official page · verified on

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

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

  4. 2019–2020ACM0001 v18.0since replaced by v19.0

    monitoring report

    official page · verified on

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

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

  5. 2020ACM0001 v18.0since replaced by v19.0

    monitoring report

    official page · verified on

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

    in the ICVCM CCP-approved range (VCS: 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

Analysis ProvenanceACM0001
Methodology·Editorial Policy·About the System

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