9. Monitoring

The Quantification Equation will includes 3 types of parameters:

• Calculated from other set or monitored parameters (e.g. BE - Baseline Emissions)
• Set at project proposal and will not change through crediting period (e.g. GWP_CH4 - GWP of Methane). Will have a third party source associated.
• Measured throughout the project crediting period.

During project proposal, project developers must specify how they plan to measure and report the measured variables. Methodologies must provide guidance in monitoring techniques, frequency of measurement, QA/QC procedures. Where relevant, methodology curators can also highlight well as opportunities for dMRV.

Example:

Parameter	Name	Unit	Type	Source	Baseline (B), Project (P), Leakage (L)	Frequency
BE	Emissions from baseline scenario	tCO2e/year	Calculated	-	B	Once per reporting period
Qavg	Average flow rate	MCF/day at 60°F/1atm	Measured	-	B	3x 10 minute intervals, before project start date
GWPCH4	Global Warming Potential of methane	tCO2e/year	Set	IPCC	B and P	Once per reporting period

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Converting Parameters for Use in Projects

Before the final feedback and voting round, methodology curators will convert any tables in this section into the parameter selection tool.

During the project proposal process, the following parameter data must be submitted by the Project Developer:

• Monitoring & Credit Issuance Frequency
• For Set Parameters:

  • Unit
  • Value
  • Source
• For Measured Parameters:

  • Unit
  • Measuring Plan:

    • Estimation, modeling, measurement, calculation approaches
    • QA/QC processes, calibration and standard monitoring of equipment

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Post-Crediting Monitoring Requirements

Post-crediting monitoring obligations are defined at the methodology level, reflecting the fact that appropriate monitoring duration is activity-specific and cannot be uniformly prescribed across all project types. Permanence risk levels, as defined in Section 8. Permanence, must be accounted for in the proposed post-crediting monitoring requirements.

A Reversal Event will trigger one the OCP Reversal Mitigation Responses, as outlined in the OCP Handbook.

For current OCP methodologies:

Sector	Active Methodologies	Post-Crediting Monitoring Requirement
Oil or Gas Well Management	Early Decommissioning of Marginal Oil and Gas Wells in the United States v1.0	Annual monitoring for regulatory changes and absence of new extraction activity
	Plugging Orphaned Oil and Gas Wells in the United States v1.0	Post-plugging leak test after 24 hours post plug Permanence check 12-18 months post plug
Fugitive Gas Destruction/ Recovery	HFC Destruction from Household Appliances in the U.S.	No post-crediting monitoring required

'Land Use' Monitoring Requirements

Although we do have any Land Use methodologies under development, any future Land Use methodologies are required to monitor for permanence and other reversal risks for at least 40 years, in line with accepted best practices (ICVCM, ICAO etc.), given the sector's unique risk of reversal. As the maximum crediting period on the OCP is 20 years, this ensures at least 20 years of post-crediting monitoring. The OCP reserves the right to run its own monitoring without Project Developer agreement if the project crediting period has ended. If a reversal event is identified during the 40 year monitoring period, the OCP will follow the reversal risk mitigation procedure, compensating from the OCP buffer pool or via project specific insurance.

Land Use sub-sectors will include:

• Regenerative Agriculture
• Enhanced Terrestrial Weathering (incl. Enhanced Rock Weathering)
• Improved Forest Management (IFM)
• Afforestation, Reforestation, and/or Revegetation (ARR)
• REDD+ (all REDD+ projects are currently out-of-scope and we do not allow any methodologies in this sector to be proposed).