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VMR0015 Revision to AMS-III.AV.: Low greenhouse gas emitting safe drinking water production systems, v1.0

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Status

Active 31 October 2025

Mitigation
Outcome Label
Eligibility

Reductions

Sectoral Scope

3. Energy demand

CDM methodology AMS-III.AV.: Low greenhouse gas emitting safe drinking water production systems (external) quantifies GHG emission reductions from the distribution of low GHG emitting water purification systems to provide safe drinking water and displace water boiling using non-renewable biomass or fossil fuels.

VMR0015 includes the following updates/additions:

  • Introduction of an updated approach to determine the fraction of non-renewable biomass
  • The requirement to set at validation the leakage adjustment factor to account for leakage related to the use of non-renewable woody biomass saved by the project activity
  • Updated emission factor for non-renewable woody biomass (for both CO2 and non-CO2 components) and fossil fuels
  • Added requirement related to the assessment of double counting of emission reductions with REDD+ project(s) and jurisdictional REDD+ program(s)
  • Added requirements related to adjusting the baseline level of the residence/institution included in the project to account for effects of interacting technologies
  • Added requirements related to the compilation and presentation of relevant data for each distributed device

VMR0015 must be used with the most recent version of AMS-III.AV. The procedures and requirements of AMS-III.AV must be applied unless indicated otherwise.

Please note:

  • VMR0015 replaces AMS-III.AV., which has been inactivated as a standalone methodology under the VCS Program.
  • Projects seeking to complete registration under AMS-III.AV., v9.0 must complete validation by May 1, 2026.
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Development History

VMR0015 Revision to AMS-III.AV.: Low greenhouse gas emitting safe drinking water production systems, v1.0

Status: Active since October 31, 2025
Grace Period:

  • VMR0015 replaces AMS-III.AV., which has been inactivated as a standalone methodology under the VCS Program.
  • Projects seeking to complete registration under AMS-III.AV., v9.0 must complete validation by May 1, 2026.

Mitigation Outcome Label Eligibility: Reductions
Summary of Changes:

  • Introduction of an updated approach to determine the fraction of non-renewable biomass
  • The requirement to set at validation the leakage adjustment factor to account for leakage related to the use of non-renewable woody biomass saved by the project activity
  • Updated emission factor for non-renewable woody biomass (for both CO2 and non-CO2 components) and fossil fuels
  • Added requirement related to the assessment of double counting of emission reductions with REDD+ project(s) and jurisdictional REDD+ program(s)
  • Added requirements related to adjusting the baseline level of the residence/institution included in the project to account for effects of interacting technologies
  • Added requirements related to the compilation and presentation of relevant data for each distributed device

Developer(s): Verra
Dates of Public Consultation: N/A
Draft Shared During Public Consultation: N/A
Summary of Public Consultation: N/A
VVB Assessment Report(s): N/A
Announcement(s): Verra Publishes Revision to CDM Methodology for Water Purification Systems