# Version history

<table data-full-width="true"><thead><tr><th width="337">Change</th><th width="382">Justification</th><th width="130">Date</th><th>Version changed</th></tr></thead><tbody><tr><td>Combined the calculations for several types of devices</td><td>Some devices were grouped together and assumed to have the same impacts.</td><td>August 2023</td><td>V1.1 to V1.2</td></tr><tr><td>Added equations for calculation GHG reductions</td><td>Increased transparency.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Aligned terminology with ISO 14064-2:2019</td><td>Improved consistency with the voluntary carbon market. LCA principles still apply.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Added risk assessment template for environmental and social do no harm</td><td>Provide more detailed and prescriptive assessment framework, clearer instructions for project developers.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td><p>Removed text for sections that are the same for all methodologies:</p><ul><li>Measurability</li><li>Real</li><li>Technology readiness level</li><li>Minimum impact</li><li>Independently verified</li></ul></td><td>Repeated text from the Standard Rules.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Added Monitoring Plan section</td><td>Alignment with Riverse Standard Rules V6.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Remove Rebound Effect and Independently Validated criteria</td><td>Alignment with Riverse Standard Rules V6.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Added uncertainty assessment section</td><td>Alignment with Riverse Standard Rules V6.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Include fraction of refurbished devices already on the market in the baseline scenario of GHG reduction quantification</td><td>Alignment with Riverse Standard Rules V6 and increase conservativeness.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Assign input used devices a fraction of environmental impacts from their first life, allocated based on their residual value</td><td>Input used devices are no longer considered waste. A more conservative assumption was made.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>E-waste treatment in the baseline scenario is modeled as a mix of e-waste incineration and landfill, rather than the ecoinvent process for device waste treatment. The latter is now used to model e-waste recycling (see Appendix 1 for ecoinvent activity names)</td><td>More accurate and representative of e-waste treatment practices.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Country WEEE rates come from data for only small IT and telecommunications devices, instead of all WEEE.</td><td>Improved precision, because statistics for all WEEE covered devices such as household appliances, lamps, photovoltaic panels.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Multiple WEEE rates from different countries are selected based on the source countries of collected devices.</td><td>Improved accuracy. Previously, only one source country could be selected in the calculation model.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td><p>New device emission factors from ecoinvent were updated (see Appendix 1):</p><ul><li>Smartphone: completely revised, see Appendix 5</li><li>Tablet, laptop: removed power adapter production, power adapter waste treatment, and the device waste treatment</li><li>PC: removed device waste treatment</li></ul></td><td>Improved accuracy and harmonization of system boundaries.</td><td>April 2024</td><td>V1.2 to V2.0</td></tr><tr><td>Added additionality section</td><td>Alignment with Riverse Standard Rules V6.</td><td>May 2024</td><td>V2.0 PC to V2.0</td></tr><tr><td>Replace number of devices collected for number of devices sold as main input data, from which other values are calculated</td><td>Devices sold are easier and more reliable to track for Project Developers</td><td>August 2024</td><td>V2.0 to V2.1</td></tr><tr><td>Change USA, China and Turkey e-waste recycling rates in Appendix 4</td><td>Previous rates were erroneously calculated.</td><td>October 2024</td><td>V2.1 to V2.2</td></tr><tr><td>Create project scope requirements</td><td>Specify that operations in different countries must be registered as separate projects</td><td>October 2024</td><td>V2.1 to V2.2</td></tr><tr><td>Add minimum list of ESDNH risks</td><td>Align with Standard Rules V6.2</td><td>October 2024</td><td>V2.1 to V2.2</td></tr><tr><td>Specify minimum frequency of updating baseline scenario</td><td>Clarity and transparency</td><td>October 2024</td><td>V2.1 to V2.2</td></tr><tr><td>Update desktop PC new and refurbished emission factors in Table 3</td><td>Typo in the values in the table, didn't match the values used in the model</td><td>May 2025</td><td>V2.2 to V2.3</td></tr><tr><td>Change GHG quantification from ecoinvent v3.10 to v3.11</td><td>Using more recent data</td><td>May 2025</td><td>V2.2 to V2.3</td></tr><tr><td>Update values in Table 3</td><td>Updated text to match model, after ecoinvent 3.11 update</td><td>September 2025</td><td>V2.3 to V2.4</td></tr><tr><td>Rename screen to monitor</td><td>Improve precision, since many devices contain screens</td><td>September 2025</td><td>V2.3 to V2.4</td></tr><tr><td>Revise light refurbishing process inputs</td><td>Added electricity, and corrected errors in input amounts for several device types</td><td>September 2025</td><td>V2.3 to V2.4</td></tr><tr><td>Add gaming console</td><td>Expanding device type options</td><td>September 2025</td><td>V2.3 to V2.4</td></tr><tr><td>Add large monitor (>25"), set existing monitor option as small monitor (&#x3C;25")</td><td>Expanding device type options</td><td>September 2025</td><td>V2.3 to V2.4</td></tr><tr><td>Additionality: Add requirement that projects in France have EBITDA lower than 10%</td><td>Allows projects in France to comply with <a href="https://www.legifrance.gouv.fr/codes/article_lc/LEGIARTI000043966440">FR L229-55/R229-101</a></td><td>September 2025</td><td>V2.3 to V2.4</td></tr><tr><td>Add Audit Compliance table</td><td>Clear and transparent auditing instructions</td><td>September 2025</td><td>V2.3 to V2.4</td></tr><tr><td>Increase uncertainty discount from 6% to 10%</td><td>Alignment with Label Bas Carbone circularity methodologies</td><td>December 2025</td><td>V2.4 to V2.5</td></tr><tr><td>Speicfy only devices that have not already been refurbished are eligible.</td><td>Conservative measure</td><td>December 2025</td><td>V2.4 to V2.5</td></tr><tr><td>Restructure sections: added Baseline Scope, renamed Eligible technologies to Eligibility and scope, renamed Eligibility criteria to Principles &#x26; requirements, moved Monitoring Plan to Principles &#x26; requirements</td><td>Align with Standard Rules V7 structure</td><td>December 2025</td><td>V2.4 to V2.5</td></tr><tr><td>Remove TRL and targets alignment criteria, move Substitution criteria requirements to Baseline Scope section</td><td>Align with Standard Rules V7 requirements</td><td>December 2025</td><td>V2.4 to V2.5</td></tr><tr><td>New Certification Scope section with requirements for crediting and monitoring period, project updates with methodology revisions, and site audits.</td><td>Align with Standard Rules V7 requirements</td><td>December 2025</td><td>V2.4 to V2.5</td></tr><tr><td>Remove limits on number of co-benefits, and require quantification and monitoring of all co-benefits</td><td>Align with Standard Rules V7 requirements</td><td>December 2025</td><td>V2.4 to V2.5</td></tr><tr><td>Environmental and social risk mitigation plan required for moderate or higher risks, instead of high risk</td><td>Align with Standard Rules V7 requirements</td><td>December 2025</td><td>V2.4 to V2.5</td></tr><tr><td>Change GHG quantification from ecoinvent v3.11 to v3.12 (average change of 1.7±1% increase in avoided emissions)</td><td>Using more recent data</td><td>January 2026</td><td>V2.5 to V2.6</td></tr><tr><td>Add requirement for projects in France to prove additional gains beyond national target of 2% collection and reuse of WEEE</td><td>Allows projects in France to comply with <a href="https://www.legifrance.gouv.fr/codes/article_lc/LEGIARTI000043966440">FR L229-55/R229-101</a></td><td>January 2026</td><td>V2.5 to V2.6</td></tr></tbody></table>


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