# Methodologies

The available methodologies and modules for use under the Rainbow Standard are listed below, with links to the respective methodology document.

## Rainbow Methodologies

Each methodology gives specific requirements and quantification methods per project types.

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="image">Cover image</th></tr></thead><tbody><tr><td>Biogas from anaerobic digestion</td><td></td><td></td><td><a href="../methodologies/biogas-from-anaerobic-digestion">biogas-from-anaerobic-digestion</a></td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2FzIVZO38yyObvcKKWrx7C%2Fbiogas-from-anaerobic-digestion.png?alt=media&#x26;token=f7a32a05-26f4-4a48-aafe-b73025d3a80d">biogas methodology.png</a></td></tr><tr><td>Biomass carbon removal and storage (BiCRS)</td><td></td><td></td><td><a href="../methodologies/biomass-carbon-removal-and-storage-bicrs">biomass-carbon-removal-and-storage-bicrs</a></td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2FR0TN0FvXWcrjcVsSjXI1%2Fbiochar.png?alt=media&#x26;token=53fc0925-3647-46c4-9485-01a72039cebe">BiCRS methodology.png</a></td></tr><tr><td>Refurbishing of electronic devices</td><td></td><td></td><td><a href="../methodologies/refurbishing-of-electronic-devices">refurbishing-of-electronic-devices</a></td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2F9ayWJeKaYCsPp7ukZtIT%2Frefurbishing-of-electronic-devices.png?alt=media&#x26;token=68e3623e-6168-458d-96ac-2edfbb5efc96">refurbishing of electronic devices methodology.png</a></td></tr><tr><td>Biobased construction materials</td><td></td><td></td><td><a href="../methodologies/biobased-construction-materials">biobased-construction-materials</a></td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2FTr3sIOHGNdE2ZmetIHZV%2Fbiobased-construction-materials-1.png?alt=media&#x26;token=d7cc7c89-4fbb-4230-8a66-4d61e58992e6">biobased construction materials methodology.png</a></td></tr><tr><td>Battery second life</td><td></td><td></td><td><a href="../methodologies/battery-second-life">battery-second-life</a></td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2F4cnpLIfrwBQTmwl54Itg%2Fbattery-second-life.png?alt=media&#x26;token=5aa5bdd3-5235-4899-9af7-d0b73307c959">battery second life methodology.png</a></td></tr><tr><td>Mineralization of alkaline materials (ex situ)</td><td></td><td></td><td><a href="../methodologies/mineralization-of-alkaline-materials-ex-situ">mineralization-of-alkaline-materials-ex-situ</a></td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2FG9GHfYH3cRuryi4yUWcg%2FCarbonation.jpg?alt=media&#x26;token=78f09219-80bb-40bb-b022-d64a8a82b2d8">Mineral Carbonation cover image.jpg</a></td></tr><tr><td>Enhanced rock weathering</td><td></td><td></td><td><a href="../methodologies/enhanced-rock-weathering">enhanced-rock-weathering</a></td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2FrhLAjTRp0G4uaonLkIVF%2Fenhanced-rock-weathering-3.png?alt=media&#x26;token=36e7f0aa-d6c5-40a0-acbe-1aa4047bcd8f">ERW methodology image 2.png</a></td></tr></tbody></table>

## Rainbow modules

General Rainbow modules cover parts of project life cycles that are repeated across many technology types and methodologies. They contain basic eligibility requirements and GHG quantification approaches, and are combined with Rainbow methodologies when needed. &#x20;

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td>Transportation</td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2F4g3ATspPrpXOkgO46WAo%2Frodrigo-abreu-lq9PxpwDZUk-unsplash.jpg?alt=media&#x26;token=ff4d4803-f1a1-4018-a818-2d8f3abca67a">transportation module.jpg</a></td><td><a href="../modules/transportation">transportation</a></td></tr><tr><td>Processing and energy use</td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2FKPNtzjJ9BQrR4HiI2epX%2Fpavel-neznanov-w95Fb7EEcjE-unsplash.jpg?alt=media&#x26;token=b4f2f0ce-3495-46ac-b170-ce853598aab0">processing and energy use_new.jpg</a></td><td><a href="../modules/processing-and-energy-use">processing-and-energy-use</a></td></tr><tr><td>Infrastructure and machinery</td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2FgZHZ01H3WWqcZELguRo6%2Fvictor-2PJMDIgK9EA-unsplash.jpg?alt=media&#x26;token=7e8c0250-7d0a-4fa7-87ba-2199989183a5">infrastructure and equipment module.jpg</a></td><td><a href="../modules/infrastructure-and-machinery">infrastructure-and-machinery</a></td></tr><tr><td>Energy co-products</td><td><a href="https://1461901304-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FE1FUJsBoIj20nqp3CtMf%2Fuploads%2FF1IanyzrKsw31BYTsPoH%2Ffre-sonneveld-q6n8nIrDQHE-unsplash.jpg?alt=media&#x26;token=208fac4c-8056-41fd-b7c3-1bb14c9e20a2">energy co products module.jpg</a></td><td><a href="../modules/energy-co-products">energy-co-products</a></td></tr></tbody></table>
