Methodologies
Inactive Methodologies
Verra reviews active methodologies to ensure (1) that they continue to reflect best practices, scientific consensus, evolving market conditions, and ongoing technical developments, (2) that they are consistent with current VCS Program rules and requirements, and (3) use appropriate and current methodological procedures. These reviews are conducted at least every five years since a methodology’s last update or review.
As a result of a review, Verra may revise or inactivate a methodology. Verra may also inactivate a methodology where no projects using the methodology have been registered within five years of the last update or review.
When Verra inactivates a methodology, a grace period may be provided for projects that are using the methodology and that are under development or validation and will be specified on the methodology’s webpage. Project proponents may continue to apply an inactivated version of a methodology, module, or tool until their next crediting period renewal or baseline reassessment, provided the request for registration, crediting period renewal, or verification with baseline reassessment was submitted within the grace period.
Information on previous versions and their associated grace periods is available in the “Development History” section of the respective methodology’s webpage.
The list below contains all methodologies that are currently inactive. Unless otherwise specified, stakeholders may request reactivation of an inactive methodology by submitting a methodology idea note as per the VCS Methodology Development and Review Process (PDF).
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AM0001
Inactive Date:
January 16, 2024
AM0001 Decomposition of fluoroform (HFC-23) waste streams
AM0007
Inactive Date:
September 11, 2023
AM0007 Analysis of the least-cost fuel option for seasonally-operating biomass cogeneration plants
AM0017
Inactive Date:
September 11, 2023
AM0017 Steam system efficiency improvements by replacing steam traps and returning condensate
AM0018
Inactive Date:
September 11, 2023
AM0018 Baseline methodology for steam optimization systems
AM0019
Inactive Date:
September 11, 2023
AM0019 Renewable energy projects replacing part of the electricity production of one single fossil fuel fired power plant that stands alone or supplies to a grid, excluding biomass projects
AM0020
Inactive Date:
September 11, 2023
AM0020 Baseline methodology for water pumping efficiency improvements
AM0021
Inactive Date:
September 11, 2023
AM0021 Baseline Methodology for decomposition of N2O from existing adipic acid production plants
AM0027
Inactive Date:
September 11, 2023
AM0027 Substitution of CO2 from fossil or mineral origin by CO2 from biogenic residual sources in the production of inorganic compounds
AM0030
Inactive Date:
September 11, 2023
AM0030 PFC emission reductions from anode effect mitigation at primary aluminium smelting facilities
AM0031
Inactive Date:
September 11, 2023