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Definition

Scope 3 Category 12: End-of-life treatment of sold products

Scope 3 Category 12 covers the expected emissions from disposing of and treating products and packaging sold during the reporting year after customers finish using them.

What is Scope 3 Category 12: End-of-life treatment of sold products?

Category 12 is the downstream part of your Scope 3 inventory that counts waste-management companies' Scope 1 and Scope 2 emissions from disposing of products sold in the reporting year. It includes expected future treatment of final products and, when your company sells an intermediate product, disposal of that intermediate product itself at the end of its life.

Why does Scope 3 Category 12 matter to you?

A customer asking for a 15-category inventory may need a separate Category 12 total and an explanation for any exclusion. Keep reporting-year sales quantities, product and packaging mass, material composition, country-specific treatment shares, factor records, and the assumptions used for consumer disposal.

How is Scope 3 Category 12 calculated?

GHG Protocol formula 12.1 multiplies the mass of sold products and packaging by the percentage sent to each treatment method and the matching emission factor, then sums the treatment results. For recycling, count emissions from recovering the material for recycling, but not the later recycling process or any claimed avoided emissions. Use product-specific disposal research where available. Otherwise record the regional average, its source, and why it is a reasonable proxy. Count the full expected result in the year of sale, not when each item is discarded.

What mistakes should you avoid?

  • Including factory waste, which belongs in Category 5.
  • Counting only products actually discarded during the reporting year.
  • Omitting packaging or subtracting avoided emissions from recycling.

Is Category 12 the same as waste generated in operations?

No. Category 5 covers waste from operations you own or control. Category 12 covers the later disposal of products and packaging you sold.

What should you send when a customer asks for Category 12?

Send the reporting period, units sold, product and packaging mass, treatment shares by country, factor source and year, calculation file, disposal assumptions, exclusions, and proxy limitations.

Example

Suppose a furniture maker in Spain sells 400 office chairs in 2026. Each chair weighs 8 kilograms and its packaging weighs 2 kilograms, so the products and packaging total 4,000 kilograms, or 4 tonnes. Its documented disposal study estimates 60% landfill and 40% combustion.

For an initial estimate, it uses the published Keslio factor of 520.58023 kg CO2e/tonne and waste_commercial_industrial_combustion_desnz_2026 at 4.65358 kg CO2e/tonne. Both come from UK DESNZ and DEFRA, UK Government GHG Conversion Factors for Company Reporting 2026.

Landfill: 4 tonnes x 60% x 520.58023 kg CO2e/tonne = 1,249.392552 kg CO2e. Combustion: 4 tonnes x 40% x 4.65358 kg CO2e/tonne = 7.445728 kg CO2e. Total expected Category 12 emissions are 1,256.83828 kg CO2e, or 1.26 metric tonnes CO2e rounded to two decimals.

The company records that these UK commercial and industrial waste factors are stand-ins for Spanish treatment of mixed chair materials and packaging, then replaces them when suitable Spain-specific factors become available. Factor source: UK Government, 2026 conversion factors, accessed 20 August 2026.

Where it comes up

GHG Protocol Category 12 boundary for waste disposal and treatment of products sold in the reporting yearCorporate Value Chain (Scope 3) Standard, chapter 5, Category 12, page 50Official sourceGHG Protocol waste-type-specific method for sold products and packaging by treatment methodTechnical Guidance for Calculating Scope 3 Emissions, Category 12, formula 12.1, pages 125-127Official source

Related terms

Scope 3 Emissions

Scope 3 emissions are the indirect greenhouse gas emissions from goods, services, transport, product use, investments, and other upstream and downstream activities outside your company's Scope 1 and Scope 2 boundary.

Scope 3 Category 5: Waste generated in operations

Scope 3 Category 5 covers emissions from third-party disposal and treatment of solid waste and wastewater generated by your owned or controlled operations during the reporting year.

Emission factor

An emission factor converts a measured activity, such as kilowatt-hours of electricity or litres of fuel, into greenhouse gas emissions by stating the emissions released per unit of that activity.

Product carbon footprint (PCF)

A product carbon footprint (PCF) is the greenhouse gas emissions assigned to one product across a stated life-cycle boundary and expressed per declared or functional unit.

Sources

  • GHG Protocol

    Category 12 boundary, reporting-year time boundary, recycling treatment, and prohibition on deducting avoided emissions

    2026-08-20

  • GHG Protocol

    Category 12 activity data, product and packaging mass, treatment shares, factors, and formula 12.1

    2026-08-20

  • UK Department for Energy Security and Net Zero

    The 2026 landfill and combustion factors used in the worked example

    2026-08-20

Last verified 2026-08-20

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Scope 3 Category 12: End-of-life treatment of sold products Definition | Keslio