Overview
How this pathway works
Improved Forest Management encompasses a family of forest practices that increase the carbon stored in managed forests compared to conventional management - without ending timber production. The common principle across all IFM activity types is a change from a current or planned management regime to a more carbon-conserving one: harvesting less frequently, harvesting more carefully, protecting the highest-value areas from harvest, or converting planned conversion to permanent conservation.
IFM is the most complex pathway in the TNS system because it simultaneously generates both avoided emission credits - from reduced harvest intensity or extended rotations that maintain higher standing stocks - and carbon removal credits - from the continued growth of protected reserves and recovering logged-over areas. The two accounting tracks require separate treatment within a single project boundary, and the interaction between the harvested and unharvested portions of the forest must be modelled carefully to avoid double-counting.
Five methodology codes are approved under Annex H. IFM-M01 covers extended rotation forestry - lengthening the harvest cycle in commercial plantations or natural forest systems. IFM-M02 covers reduced-impact logging - maintaining harvest volume but improving logging techniques to reduce damage to residual trees, soils, and understory. IFM-M03 covers conversion to protection - withdrawing planned clearcut or conversion areas from harvest altogether. IFM-M04 covers High Conservation Value and riparian reserve creation - setting aside environmentally sensitive areas within a working forest landscape. IFM-M05 covers community forest management - formalising governance and reduced-impact practices in community-managed forests to reduce over-harvesting and unsustainable clearing.
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Mixed permanence class. IFM projects carry Class I Biological permanence for increased carbon stocks in managed harvest areas - where resumption of conventional harvesting would reverse the benefit within a single rotation - and Class II Ecological permanence for permanently protected reserves and conversion-to-protection areas. The applicable permanence class is assigned per stratum and per activity type within the project. Buffer pool contributions of 15–28% apply, with the rate determined by the NPRR at validation including harvest intensity, tenure, market conditions, and climate disturbance risk.
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Timber production must continue. IFM projects under Annex H must maintain commercial timber production from the harvested portion of the project area throughout the crediting period. A project that terminates timber production across the entire property converts from an IFM project to a conservation project and must be re-registered under Annex E (Biodiversity Conservation, BDC pathway). Conversely, if harvest intensity in the managed area increases beyond the approved baseline, the management improvement carbon benefit is partially or fully cancelled and the project enters a mandatory review.
Accounting Framework
Three IFM accounting types
TNS v1.0 Annex H recognises three distinct accounting types within the IFM pathway, each applicable to different parts of the project area and crediting different carbon benefits. A single project may use all three within one boundary - the forest is stratified and each stratum receives the applicable accounting treatment.
Accounting Type 1
Avoided Emissions - Reduced Harvest
Carbon benefit from maintaining higher standing stocks by reducing harvest intensity, extending rotation length, or applying reduced-impact logging. The benefit equals the difference between the baseline harvest scenario carbon stock trajectory and the project scenario carbon stock trajectory. Applies to IFM-M01 and IFM-M02 managed harvest strata.
Class I permanence · Buffer 20–28% · Methodologies M01, M02
Accounting Type 2
Avoided Emissions - Conversion Prevention
Carbon benefit from preventing planned clearcut conversion or full timber extraction. Equivalent to a conservation project for that stratum - the avoided emission is the full carbon stock of the area that would have been cleared. Applies to IFM-M03 conversion-to-protection strata where a documented conversion plan existed prior to the carbon project.
Class II permanence · Buffer 18–25% · Methodology M03
Accounting Type 3
Carbon Removal - Reserve Growth
Carbon sequestration benefit from forest growth in permanently protected HCV reserves, riparian buffers, and conversion-to-protection areas where the forest continues to accumulate carbon. Measured as net biomass increment at permanent plots and applied to the protected reserve area. Applies to IFM-M04 and the growth component of IFM-M03.
Class II permanence · Buffer 15–22% · Methodologies M03, M04
Governing Standard
TNS v1.0 - Annex H
This pathway is governed exclusively by the Teravent Nature-Based Carbon Standard (TNS v1.0). All requirements - baseline harvest scenario construction, carbon stock assessment, reduced-impact logging practice verification, HCV reserve designation, leakage, permanence, and credit issuance - are defined within TNS v1.0 and Annex H.
TCR›
TNS v1.0›
Annex H - Improved Forest Management›
IFM-M01 through IFM-M05
M02
Financial additionality - reduced harvest must not be economically rational without carbon revenue · Regulatory surplus - improved practices must not be mandated by existing forest code · Common practice test - <20% of comparable managed forests apply equivalent improvements voluntarily
M03
Baseline scenario: Forest Management Plan or historical harvest records establish the BAU harvest regime · Carbon stocks measured at permanent plots (AGB, BGB, DOM, SOC) · Project scenario models stock trajectory under improved management over crediting period
M04
Class I for managed harvest strata · Class II for protected reserves and conversion-to-protection · Buffer 15–28% by NPRR · Timber market risk and management plan continuity as explicit NPRR inputs
M05
Biodiversity Impact Assessment mandatory · FPIC required on community lands · HCV reserve biodiversity monitoring required · Workers' rights and Just Transition Plan for IFM-M01 where reduced harvest affects employment
M06
30-year crediting period · Harvest volume and rotation length records verified at each VVB event · Forest Management Plan must be submitted and updated every 10 years · Timber production continuity confirmed annually
M07
TNC serial: TCR–TNS–IFM–[Country]–[ProjectID]–[Vintage]–[Unit] · Accounting type (avoided emission / removal) noted on credit record · Mixed-type issuances separately serialised per stratum
Teravent Nature Credit - Serial Number Format (TNS Annex H)
TCR
–
TNS
–
IFM
–
IN
–
00441
–
2025
–
000001
Methodologies Accepted
Five approved IFM activity types
TNS v1.0 Annex H approves five IFM methodology codes covering the principal management improvements applicable to commercial and community-managed forests. A project may use multiple methodology codes within a single boundary - each applicable to a different management stratum. The project's Forest Management Plan governs the spatial division of activity types and must be submitted to the TSA at registration.
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Baseline scenario construction: Unlike conservation projects, IFM projects do not require an active external deforestation threat. Instead, the baseline is the management regime the landowner would have applied without carbon finance - the Business As Usual (BAU) scenario - which must be documented from existing Forest Management Plans, harvest records, or equivalent planning documents. The carbon benefit is the difference between the BAU carbon stock trajectory and the project management carbon stock trajectory, modelled over the crediting period. BAU harvest records covering a minimum of 5 years prior to project start are required to validate the baseline harvest intensity and rotation assumptions.
Extended rotation forestry delays harvest beyond the conventional economically optimal rotation age - allowing the standing timber stock to accumulate additional biomass carbon during the extension period. In plantation forestry, the conventional rotation is typically set at the age of maximum mean annual increment - the point where average annual growth peaks. Extending beyond this age reduces annual productivity but substantially increases standing stock. In natural forest systems with longer conventional rotations (60–120 years), even modest extensions of 20–40 years generate significant carbon accumulation because the trees continue adding biomass volume throughout their remaining growth. IFM-M01 requires that the extended rotation is maintained by a legally binding Forest Management Plan amendment or equivalent commitment secured for the full crediting period. A Just Transition Plan must be submitted for any project where rotation extension reduces harvest volumes by more than 20% relative to baseline, documenting how impacts on forest workers and local timber-dependent communities will be managed.
Permanence
Class I · Biological
Buffer Pool
20–28% (timber market risk)
Min. Extension
≥20% increase over baseline rotation age
Baseline Doc.
Forest Management Plan · Min 5-yr harvest records
Just Transition
Required if harvest volume reduced >20%
Accounting Type
Avoided emission - higher standing stock
Key Monitoring Indicators
- Harvest records - annual timber volume extracted per management unit, confirmed against Forest Management Plan extended rotation schedule; submitted to TCR annually
- Standing biomass at permanent plots - DBH and height remeasurement every 5 years; confirms extended rotation trees are accumulating carbon on expected trajectory
- Rotation age compliance - GPS-logged harvest area maps submitted within 30 days of each harvest event; confirms no premature harvest in extended-rotation compartments
- Silvicultural treatment records - thinning, pruning, and road maintenance activities logged; confirms no management changes increasing disturbance
- Forest Management Plan currency - updated FMP submitted to TSA every 10 years; rotation commitments confirmed as unchanged
- Worker employment records - timber employment data submitted annually where Just Transition Plan is in place
Conventional selective logging in tropical and subtropical forests causes collateral damage far exceeding the directly harvested trees - canopy gaps from felling, skid trail networks compacting soils, dragging logs damaging surrounding trees, and road networks fragmenting the forest. Research across tropical forest systems shows that conventional selective logging damages or kills 40–70% of residual trees during a harvest event, even when only 5–10% of trees by count are extracted. Reduced-Impact Logging (RIL) applies a suite of harvesting controls - pre-harvest inventory and vine cutting, directional felling, planned skid trail networks with bridges at stream crossings, maximum skid trail density limits, and log landing placement away from watercourses - that reduce collateral damage to 10–25% of residual trees. IFM-M02 credits the difference in standing carbon stock between the BAU conventional logging scenario and the RIL scenario, modelled from published damage coefficients validated by field measurement at permanent plots.
Permanence
Class I · Biological
Buffer Pool
22–28% (harvest-cycle reversibility)
Harvest Volume
Maintained - same extraction, reduced damage
Damage Reduction
Residual tree mortality: BAU 40–70% → RIL 10–25%
RIL Certification
FSC or equivalent certification strongly encouraged
Accounting Type
Avoided emission - reduced collateral damage
Key Monitoring Indicators
- Post-harvest damage assessment at permanent plots - residual tree mortality, crown damage, and soil compaction measured within 6 months of each harvest event; compared against BAU damage coefficients to verify RIL benefit
- Skid trail network maps - GPS survey of all skid trails, landings, and roads after each harvest; confirms compliance with maximum skid trail density and stream buffer requirements
- Pre-harvest inventory and vine cutting records - timber inventory and vine cutting completion confirmed by VVB before each harvest event
- Harvest volume records - annual timber extraction confirmed against baseline harvest intensity; any material increase triggers credit recalculation
- Biomass recovery at permanent plots - remeasurement every 5 years confirms residual stand recovering on expected trajectory relative to RIL damage model
- Stream crossing and buffer zone compliance - site inspection of watercourse crossings and riparian buffer widths at each harvest event; photo-documented
IFM-M03 covers areas within a managed forest holding that were approved or planned for clearcut harvest, conversion to plantation, or land-use change, but are instead set aside for permanent protection as a carbon project activity. The baseline scenario requires documentary evidence of the planned conversion - an approved harvest plan, plantation conversion permit, or land-use rezoning - that would have been executed without carbon finance. This methodology bridges the IFM and conservation pathways: the carbon benefit in the short term is a large avoided-emission credit (the full carbon stock of the area that would have been cleared), and the long-term benefit transitions to a carbon removal credit as the protected forest continues to grow. The project must maintain active timber production from the remaining managed portion of the property - a pure conservation project with no remaining harvest area must re-register under Annex E.
Permanence
Class II · Ecological (protected strata)
Buffer Pool
18–25% (by NPRR)
Baseline Evidence
Approved harvest or conversion plan required
Timber Continuity
Active harvest must continue on remaining managed area
Protection Mechanism
Legal instrument for full crediting period required
Accounting Type
Avoided emission + removal (growing reserve)
Key Monitoring Indicators
- Forest cover in protected strata - annual satellite monitoring confirms no harvest or conversion has occurred in areas committed to protection
- Biomass growth at permanent plots in protected area - remeasurement every 5 years; models growth increment for removal credit calculation
- Harvest records from remaining managed area - annual timber volume from managed strata confirms timber production is continuing as required
- Protection legal instrument status - annual confirmation that legal commitment to protect is unchanged; any challenge or modification notified to TSA within 30 days
- Carbon stock assessment of protected strata - full biomass and SOC measurement at validation and each VVB verification; confirms avoided-emission baseline remains valid
- Biodiversity in protected strata - species surveys every 5 years confirming ecological recovery trajectory in formerly managed areas
IFM-M04 creates formally designated and enforced reserves within an active working forest landscape - areas where the ecological or carbon values are sufficiently high that permanent exclusion from harvest generates a verifiable carbon and biodiversity benefit. HCV reserve categories eligible under Annex H include: watercourse riparian buffers (minimum 30 m either side of permanent streams, 50 m for rivers); steep-slope exclusion zones (slopes >35°); legacy tree reserves (old-growth trees exceeding 2× the mean diameter of the stand, protected as wildlife habitat and structural complexity); rare ecosystem patch reserves (areas supporting threatened plant communities); and wildlife corridor strips connecting major habitat patches within the forest holding. Unlike IFM-M03, IFM-M04 does not require a pre-existing conversion plan - the baseline is the absence of any formal exclusion from harvest, evidenced by the management history of similar areas in the same forest.
Permanence
Class II · Ecological
Buffer Pool
15–22% (relatively lower - small area risk)
Min. Riparian Buffer
30 m (stream) · 50 m (river)
Legacy Trees
≥2× mean stand diameter - GPS-registered
Reserve Demarcation
GPS boundary + permanent physical markers required
Accounting Type
Avoided emission + removal (reserve growth)
Key Monitoring Indicators
- Reserve boundary integrity - annual GPS survey of all reserve boundaries; physical markers inspected; any encroachment reported within 30 days
- Legacy tree survival - GPS-registered trees inspected annually; mortality events documented and explained; species and DBH confirmed against registration record
- Riparian buffer width compliance - stream channel position verified against buffer boundary at each VVB inspection; any harvesting in buffer zone notified immediately
- Biomass growth in reserve strata - permanent plots remeasured every 5 years; confirms carbon accumulation trajectory for removal credit calculation
- Wildlife use of HCV reserves - camera traps and bioacoustic sensors at permanent stations in reserves; confirms ecological function of retained structural elements
- Stream water quality at catchment outlets - quarterly turbidity and suspended sediment monitoring; confirms riparian buffer function
- Harvest record compliance - annual timber extraction records confirm no harvest has occurred in registered reserve areas
IFM-M05 addresses a distinct challenge: community-managed forests that are legally held by village communities or indigenous peoples but are experiencing informal over-harvesting - fuelwood collection, charcoal production, small-scale timber extraction, and agricultural encroachment - at rates that exceed the forest's regenerative capacity. The baseline scenario is the current unsustainable harvest rate, documented from remote sensing, community household surveys, and biomass measurements. The project provides carbon finance that funds community governance structures, sustainable harvest rules, boundary demarcation, and monitoring capacity - reducing harvest intensity to a level that allows the forest to recover and grow. FPIC from all relevant community members is mandatory. The carbon benefit is generated from the recovery of biomass stocks above the declining baseline trajectory. IFM-M05 is the IFM methodology with the highest social co-benefit potential - it directly finances community institutions and creates long-term governance capacity for forest management.
Permanence
Class I · Biological
Buffer Pool
22–28% (governance risk premium)
Baseline Doc.
Household harvest surveys + remote sensing
FPIC
Mandatory - full community assembly consent
Governance Plan
Community Forest Management Plan + bylaws required
Accounting Type
Removal - biomass recovery above baseline
Key Monitoring Indicators
- Forest biomass at permanent community plots - DBH and height remeasurement every 3 years; confirms stock recovery above declining BAU trajectory
- Community harvest records - household fuelwood and timber extraction surveys annually; compared against sustainable harvest limit in Community Forest Management Plan
- Community governance function - annual independent assessment of governance body meeting frequency, bylaw compliance, and community monitor activity records
- Forest cover - annual satellite NDVI and land cover analysis; confirms no major clearing or encroachment events
- Benefit distribution records - carbon revenue distribution to community members documented annually; confirms equitable distribution per agreed community benefit-sharing plan
- FPIC maintenance - annual community assembly confirming ongoing community consent to project terms; any withdrawal of consent notified to TSA within 30 days
Reduced-Impact Logging Practices
What RIL requires in practice
IFM-M02 reduced-impact logging involves a specific suite of pre-harvest, harvest-time, and post-harvest practices verified against the RIL practice standard defined in TNS v1.0 Annex H Schedule 1. All four practice categories must be fully implemented. Partial compliance is not accepted - where any RIL practice category is not met, that harvest compartment reverts to BAU accounting for that harvest event.
Pre-Harvest - Inventory & Vine Cutting
100% Inventory and Climber Cutting
All timber trees above the minimum harvest diameter must be individually GPS-marked, species-identified, and DBH-measured before harvest commences. Climber vines connecting harvest trees to adjacent trees must be cut a minimum of 12 months before felling to prevent canopy pull-down of neighbouring trees during felling. Felling direction must be planned for each tree to minimise canopy gap and residual damage. Pre-harvest planning is the single highest-impact RIL intervention - research shows vine cutting alone reduces collateral mortality by 20–40%.
100% inventory required · Vine cutting: min 12 months before felling
Harvest - Directional Felling
Planned Felling Direction
Each tree is felled in the pre-planned direction that minimises residual stand damage and creates the smallest canopy gap. The felling crew must be trained and certified in directional felling technique. Felling direction must be documented in the harvest records for VVB review. Where a tree cannot be felled in the planned direction due to safety or stem defects, the deviation must be logged and explained. Directional felling combined with vine cutting typically reduces collateral crown damage by 50–60% compared to conventional operations.
Certified fellers required · Direction documented per tree
Infrastructure - Skid Trail Planning
Planned Trail Network with Density Limits
Skid trails must be pre-planned to minimise total trail length - maximum 200 m per hectare of trail density (vs. 400–600 m/ha in conventional operations). Trails must avoid stream crossings where possible; where unavoidable, culverts or bridges must be installed. Trails must be aligned to follow natural contours to minimise erosion. Log landings must be sited away from watercourses and on stable soils. Trail rehabilitation - waterbars, re-vegetation - must be completed within 6 months of harvest completion.
Max 200 m/ha trail density · Stream crossings: bridge or culvert mandatory
Post-Harvest - Rehabilitation
Trail Closure and Watercourse Restoration
All temporary skid trails and log landings must be rehabilitated within 6 months of harvest completion - log water bars installed at maximum 20 m intervals, cut slopes revegetated, and stream crossings removed or secured. All culverts must be sized to pass the 1-in-25-year flood event without overtopping. Post-harvest damage assessment - residual tree mortality survey at permanent plots - must be completed within 6 months and submitted to the TSA as part of the harvest event report.
Rehabilitation: within 6 months · Damage assessment: within 6 months
HCV Reserve Framework
What qualifies as a protected reserve
IFM-M04 reserve types are formally defined in TNS v1.0 Annex H Schedule 2. Each reserve type carries specific eligibility criteria, minimum dimensions, and boundary demarcation requirements. All reserves must be GPS-mapped, physically demarcated with permanent markers, and registered with the TSA before the first credit issuance.
Riparian Buffer
30 m from permanent streams · 50 m from rivers · Both banks
Steep Slope Exclusion
Slopes >35° slope angle · Confirmed by DTM survey
Legacy Trees
≥2× mean stand diameter · GPS-registered individual trees
Rare Ecosystem Patches
Confirmed by ecologist · Min 1 ha contiguous area
Wildlife Corridors
Min 200 m width · Links two confirmed habitat patches
Seed Tree Retention
≥5 seed trees/ha across harvest area · No harvest exclusion
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Reserve area proportionality: The total area registered as HCV reserves under IFM-M04 cannot exceed 40% of the total project boundary area. Where reserve area would exceed 40%, the excess must be re-registered under IFM-M03 (conversion to protection) with documented baseline evidence, or the project boundary must be adjusted to maintain the harvested-to-protected ratio. This rule prevents IFM-M04 from being used as a vehicle for wholesale conversion of managed forests to conservation projects through the simpler IFM registration pathway.
Carbon Pool Accounting
What must be measured
IFM carbon accounting covers both the managed harvest strata and the protected reserve strata - with different pool requirements and measurement frequencies applicable to each. Harvested wood products (HWP) must be tracked for extended-rotation and conversion-to-protection projects where timber extracted during the crediting period continues to store carbon.
Required - All strata
Aboveground Biomass (AGB)
The dominant carbon pool across all IFM project types. Measured at permanent plots using DBH and height by species with approved allometric equations. Must cover both managed harvest strata (to track stock changes between harvests) and protected reserve strata (to confirm protection effectiveness and model removal credits). Remeasured every 5 years across the full project area.
Required
Belowground Biomass (BGB)
Live root biomass estimated from AGB using IPCC root-to-shoot ratios by forest type and climate zone. Required for all strata. Particularly important for IFM-M02 projects where repeated soil disturbance from skid trails may reduce fine root biomass - the baseline must account for this effect in the BAU damage model.
Required where material
Dead Organic Matter (DOM)
Deadwood and litter carbon, particularly important in protected reserve strata (IFM-M03, IFM-M04) where DOM accumulates as the forest ages after exclusion from harvest. Coarse woody debris measured by line-intercept transects every 5 years in reserve strata. Typically material where reserve areas have been under protection for more than 10 years and deadwood exceeds 5% of total ecosystem carbon.
Required where material
Soil Organic Carbon (SOC)
SOC change is required in managed harvest strata where harvest operations significantly disturb the soil - particularly for RIL projects (IFM-M02) where soil compaction and organic matter loss from skid trail construction must be assessed. SOC measured at 0–30 cm at permanent plots. In extended-rotation systems with minimal soil disturbance, SOC may be excluded as de minimis with VVB acceptance. Required at 0–60 cm in community forest management projects where agricultural encroachment has disturbed topsoil.
Required - Extended rotation and C-to-P
Harvested Wood Products (HWP)
Carbon continuing to be stored in timber extracted from the project area and used in long-lived wood products - construction timber, furniture, engineered wood products. HWP accounting must track product end-uses and apply IPCC first-order decay functions to calculate ongoing carbon storage in wood products over time. HWP must be accounted for IFM-M01 and IFM-M03 projects where timber extraction continues from the managed strata. The net HWP contribution is subtracted from gross project emissions to avoid double-counting with the standing stock.
Excluded
New Carbon Above Pre-Project Baseline
For IFM projects based on avoided emissions from reduced harvest intensity, the carbon benefit is limited to the avoided loss relative to the BAU harvest trajectory - not new carbon above the pre-project stock. Where protected reserve strata demonstrate measurable growth above the pre-project carbon stock, that increment may be credited separately as a removal benefit. Double-counting between the avoided-emission and removal tracks within the same stratum is strictly prevented.
MRV Confidence
Measurement, reporting
& verification
IFM MRV has a well-developed methodological base - forest biomass measurement techniques are mature, harvest records provide a robust compliance audit trail, and remote sensing can detect major deforestation events reliably. The principal uncertainties are the baseline harvest scenario construction and the modelling of RIL damage reduction benefits in IFM-M02.
Forest Biomass Stock MeasurementHigh
Harvest Volume Compliance AuditVery High
Baseline Harvest Scenario AccuracyMedium–High
RIL Damage Reduction Modelling (IFM-M02)Medium
Remote Sensing - Harvest DetectionHigh
Permanence - Working ForestMedium
🔬 Baseline Harvest Scenario Standard - TNS Module 3 · Annex H
The business-as-usual harvest scenario is the most important single input to any IFM project credit calculation. It must be derived from a documented Forest Management Plan or equivalent planning document that was in place before project registration, supported by a minimum of 5 years of actual harvest volume records. Where records do not cover 5 full years, a VVB-accepted proxy method - such as comparison with adjacent forests under the same management entity or analysis of harvest permit records - may be used with an additional conservative deduction of 10% on the projected baseline benefit. The baseline harvest rate must be updated every 10 years using fresh harvest data to reflect any management changes in comparable forests. Where baseline harvest rates have declined in the project period - for example, because of timber market contraction - the baseline must be adjusted downward and the credit volume recalculated accordingly.
Additionality
Demonstrating additionality
TNS v1.0 Module 2 requires all IFM projects to satisfy three additionality tests. The specific tests vary by methodology - extended rotation and RIL rely primarily on financial additionality, while conversion-to-protection requires the stronger threat-based additionality approach used in Annex E conservation projects.
1
Regulatory Surplus Test
The improved management practice must not be mandated by any existing national forest code, environmental regulation, certification requirement, or corporate sustainability policy. In many jurisdictions, minimum riparian buffers, maximum harvest volumes, and basic erosion control are mandated by law - only improvements beyond these legal minimums qualify. For IFM-M04, if FSC or equivalent certification already requires the HCV reserves being claimed, those reserves cannot be credited under Annex H. Where government agri-environment or forest stewardship scheme payments already compensate the landowner for management improvements, the payment must be disclosed and the carbon benefit net of that payment must be demonstrated as additional.
2
Financial Additionality Test
The management improvement must not be financially self-sustaining without carbon revenue. For IFM-M01 (extended rotation), the foregone harvest income from delaying the rotation must exceed the non-carbon revenues - including any timber premium for larger logs - that the longer rotation generates. For IFM-M02 (RIL), the additional cost of pre-harvest inventory, vine cutting, certified operators, and trail rehabilitation must not be offset by reduced log damage, improved recovery ratios, or market premiums available from certification. A detailed cost-benefit analysis must be submitted for each methodology used within the project, with timber price assumptions documented and sensitivity to price changes assessed.
3
Common Practice Test
The improved management practice must not already be common in the project geography among comparable forest operators. A survey of comparable forest management units in the same administrative region must confirm that fewer than 20% of managed forests voluntarily apply the specific practice claimed - extended rotation beyond optimal rotation age, full RIL implementation, formal HCV reserve creation - without external financial incentive. For IFM-M05 (community forest management), the test confirms that formalised community forest management plans with monitored harvest controls are not common practice in comparable community forests without carbon or development finance support.
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FSC-certified forests: Forests holding FSC or equivalent certification face a stricter common practice test - FSC requires many of the practices that IFM projects claim as improvements, and certification is increasingly common in many geographies. IFM projects in FSC-certified forests must demonstrate that the specific practice being credited exceeds FSC requirements and is not already being applied as an FSC obligation. Where FSC certification is confirmed, only practices that go beyond the FSC standard - such as significantly longer rotations than FSC prescribes, wider riparian buffers than FSC mandates, or legacy tree densities above FSC requirements - may be credited under Annex H.
Leakage Assessment
Leakage types & deductions
IFM leakage is dominated by market leakage - reduced timber supply from the project forest displacing harvest demand to other forests - and activity-shifting leakage, where the same company or landowner increases harvest intensity on other properties in response to the management restrictions in the project area.
Market Leakage
Timber Supply Displacement
Where an IFM project reduces annual timber supply by reducing harvest intensity or extending rotations, the market demand for timber is met from other sources - potentially including forests with lower management standards. A timber market displacement analysis covering the regional timber market (typically the same country or trading region) must assess the leakage fraction. For projects supplying more than 5% of the regional timber market, a formal market leakage deduction of 10–20% of gross credits applies. For smaller projects, market leakage is assessed qualitatively and factored into the buffer pool.
Default: 10–20% for IFM-M01 where harvest volume reduced · Methodology-specific
Activity-Shifting Leakage
Harvest Displaced to Other Properties
Where the project operator owns or manages multiple forest properties, reduced harvest intensity on the project property may be compensated by increased harvest on other managed forests outside the project boundary. A disclosure requirement applies to all IFM projects: the project developer must declare all forest holdings operated by the same entity and demonstrate that no compensating increase in harvest on other properties has occurred. Where compensating harvest increase is confirmed, a deduction equal to the net additional harvest emissions on the other properties must be applied.
Full entity disclosure required · Compensating harvest deducted 1:1
In-boundary Activity Shifting
Harvest Intensity Increase - Non-Project Strata
Within a single project boundary, increased harvest intensity in non-project strata - areas excluded from IFM methodology claims - must be monitored and disclosed. Where a project applies IFM-M04 HCV reserves to 25% of a forest holding, the remaining 75% may continue under conventional management. If harvest volume on that 75% increases materially (>15% above baseline), a within-boundary leakage deduction applies to the IFM-M04 credits proportional to the additional harvest.
Monitored annually · >15% increase triggers within-boundary deduction
Upstream Input Leakage
RIL Infrastructure & Operations GHG
GHG from forestry equipment, road construction, and transportation associated with the project's logging operations must be quantified where material. For most IFM projects, operational GHG is de minimis relative to the carbon benefit - less than 1% of gross credits. Where a project involves significant road construction or mechanised harvesting, a one-time operational GHG assessment per TLP v1.0 must be submitted. IFM-M02 RIL projects typically have lower operational GHG than BAU conventional logging because planned operations reduce unnecessary equipment passes.
De minimis threshold: 2% · Typically <1% for IFM projects
Permanence & Non-Permanence Risk
Buffer pool & reversal risk
IFM permanence risk reflects the working forest context - management improvements are reversible if the landowner changes practices, sells the property, or faces economic pressure to increase harvest. Timber market downturns, company financial distress, and management succession are key risk factors that do not apply to conservation projects, and must be assessed explicitly in the NPRR.
| Methodology |
NPRR Rating |
Buffer Pool Rate |
Primary Reversal Risks |
| IFM-M01 Extended Rotation |
Medium–High |
20–28% |
Timber price spike incentivising premature harvest; management succession (sale or inheritance); financial distress; fire or wind damage to unharvested stands; regulatory change increasing harvest obligations |
| IFM-M02 Reduced-Impact Logging |
Medium |
22–28% |
Operator change losing RIL certification; cost pressure reverting to conventional operations; equipment breakdown forcing conventional methods; certification lapse |
| IFM-M03 Conversion to Protection |
Medium |
18–25% |
Legal protection instrument challenge; property sale without conservation condition transfer; fire or wind damage; management plan revision withdrawing protection |
| IFM-M04 HCV & Riparian Reserves |
Low–Medium |
15–22% |
Reserve boundary encroachment; property subdivision removing reserve from project; fire; cascade logging - harvest approaching reserve edges creates gap and wind damage |
| IFM-M05 Community Forest Management |
Medium–High |
22–28% |
Community governance breakdown; benefit-sharing dispute suspending participation; unsustainable harvest resumption; external encroachment overriding community management |
⚠️
Premature harvest notification: Any harvest within a stratum that is more than 10% ahead of the approved rotation schedule, or within a registered reserve area, must be notified to the TSA within 30 days. Buffer pool credits are cancelled proportional to the verified carbon loss. For IFM-M01 projects, the FMP must be submitted to the TSA before any harvest event in an extended-rotation compartment - unexpected harvest within the extension period triggers an automatic review and potential credit suspension pending investigation. Property sales during the crediting period must include a legal covenant transferring project obligations to the new owner - the TSA must be notified of any property transaction within 60 days.
Eligibility Requirements
Key registration criteria
All of the following must be satisfied for registration under TNS Annex H. Methodology-specific requirements - RIL practice standards, HCV reserve minimum dimensions, community governance plan requirements - are detailed in the individual IFM-M code specifications and Schedules 1 and 2 within Annex H.
✓
Active commercial timber harvest confirmed within the project boundary - harvest records or Forest Management Plan demonstrating that productive forest management is occurring or was planned; projects where timber production has already ceased cannot register under Annex H
✓
Baseline Forest Management Plan or harvest records covering minimum 5 years prior to project start date submitted - documents the BAU harvest regime (rotation age, annual harvest volume, species mix, harvesting system) against which the improvement benefit is calculated
✓
Baseline carbon stock assessment at permanent plots established before any project management changes commence - minimum one plot per 20 ha stratified by management stratum (harvested vs. reserve); all material pools measured per methodology requirements
✓
Three-test additionality satisfied - regulatory surplus (improvement exceeds legal minimum), financial additionality (carbon revenue necessary for improvement to proceed), common practice test (fewer than 20% of comparable forests apply practice without financial incentive)
✓
Management improvement commitment secured for the full crediting period - Forest Management Plan amendment, legal covenant, conservation easement, or equivalent binding instrument covering the improvement activities; no unilateral withdrawal by landowner without TSA notification
✓
Leakage disclosure - full entity disclosure of all forest holdings managed by the same operator; timber market analysis completed for the relevant regional market; any compensating harvest on other properties disclosed and deducted
✓
Biodiversity Impact Assessment completed by qualified ecologist - baseline survey of indicator taxa, HCV features, and ecological integrity indicators; monitoring plan specifying post-project survey frequency
✓
FPIC obtained where project involves community-managed forests (IFM-M05) or where indigenous communities have customary rights within the project boundary - consent documented in local languages and confirmed by independent facilitator
✓
Just Transition Plan submitted for IFM-M01 projects where rotation extension reduces annual harvest volume by more than 20% relative to baseline - documents impacts on forest workers and local timber-dependent communities and mitigation measures
✓
Land tenure confirmed for the full crediting period - freehold title, long-term lease, community title, or equivalent; no unresolved tenure disputes affecting more than 5% of project area; property sale or succession plan includes project obligation transfer covenant
Co-Benefits & SDGs
Sustainable Development
Goal alignment
IFM projects deliver co-benefits across watershed protection, biodiversity, timber industry livelihoods, and community governance. The working forest context means that IFM projects maintain the full economic value of commercial forests while improving their carbon and ecological outcomes - creating a model where sustainability and productivity are complementary rather than competing objectives. Eight SDGs are tracked.
SDG 15 · Life on Land
SDG 13 · Climate Action
SDG 6 · Clean Water
SDG 8 · Decent Work
SDG 1 · No Poverty
SDG 12 · Responsible Consumption
SDG 10 · Reduced Inequalities
SDG 17 · Partnerships
Biodiversity+
IFM projects achieving verified net positive biodiversity outcomes - demonstrated through systematic species surveys at validation and each 5-year verification showing stable or improving indicator taxa, HCV feature maintenance, and structural complexity indicators above BAU logging trajectory - are eligible for Biodiversity+. IFM-M04 HCV reserve projects are strong Biodiversity+ candidates because biodiversity protection is the defining purpose of those reserves.
Water+
IFM projects demonstrating improved watershed function through riparian buffer creation, skid trail rehabilitation, and reduced sediment loading to watercourses - evidenced by stream turbidity monitoring data showing reduced suspended sediment at catchment outlets compared to baseline or comparable unimproved forests - are eligible for Water+. IFM-M04 riparian buffer projects are primary Water+ candidates.
Livelihoods+
IFM-M05 community forest management projects generating verified community income through formalised sustainable harvest systems, carbon benefit-sharing with documented distribution, and community governance capacity building - with annual income and participation records independently verified - are eligible for Livelihoods+. IFM-M01 projects with documented Just Transition Plans and confirmed worker welfare outcomes may also qualify.
Responsible Wood
IFM projects achieving or maintaining FSC or equivalent certification - or demonstrating management practices that exceed certification requirements - are eligible for the Responsible Wood quality label on credit records. This label signals to buyers that the carbon credits are associated with verified sustainable timber production, relevant for corporate procurement teams with timber supply chain sustainability commitments.
Priority regions: India (Central India sal and teak forest concessions; Northeast India timber production forests; Western Ghats community forests under joint forest management - JFM provides a ready governance framework for IFM-M05), Southeast Asia (Indonesia and Malaysia - large commercial timber concessions where RIL and extended rotation can generate significant carbon benefits; Philippines community forest program), Sub-Saharan Africa (Tanzania, Mozambique, Zambia miombo woodland community forests - strong IFM-M05 potential; DRC industrial concessions), Latin America (Brazil - Amazon timber concessions on public forest; Bolivia; Peru), and Oceania (Papua New Guinea customary land forestry; Australia native forest operations in Tasmania and Victoria where rotation extension generates biodiversity and carbon co-benefits).
