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Extracted Content

Calculating reuse Measure the weight of the item being reused or donated:

• For items reused within the project, such as wooden pallets, multiply the item’s weight by the number of items being reused.

• For on-site furniture reuse programs, account for the reuse when the item is donated to the program.

A volume-to-weight conversion calculation may be used:

• Repairing an item to keep using it instead of disposing it counts as reuse. [90]

• Typically, most reusable items will not be the same number each month, so the items will need to be tracked monthly on how many times they are reused. Estimates may be used here at times as long as the estimate methodology is noted in the diversion spreadsheet. [91]

Additional considerations Seasonal collections and intermittent waste streams Project teams tracking less than 12 months of materials must account for any seasonal collections or intermittent waste streams that may not be accounted for within the period for which the waste data is tracked. Example scenarios:

 The three-month reporting period occurs in winter, when landscape waste is not generated. However, in the summer months, landscape waste is generated. In this instance, use one of the calculation methods described above to estimate the total amount of landscape waste typically generated each year and prorate the annual total to a monthly value. Include the monthly value within each month of the reporting period calculations.

 An annual e-waste drive occurs outside of the three-month reporting period. Prorate the annual total to a monthly value and include the prorated monthly value within each month of the reporting period calculations.

Shared collection If a project shares waste collection with other buildings or spaces, including individual projects on a campus, it is acceptable to prorate the combined material total for the project based on the total number of occupants, square footage, or

90 TRUE Diversion Data Additional Guidance Version 1.2, Green Business Certification Institute, Inc. (GBCI), (2024), accessed March 31, 2025, https://true.gbci.org/sites/default/files/resources/TRUE-Diversion-Data-Technical-Guidance_1.pdf. 91 TRUE Diversion Data Additional Guidance Version 1.2, Green Business Certification Institute, Inc. (GBCI),

U.S. Green Building Council LEED v5 Reference Guide for Operations and Maintenance, April 2025 Launch Edition 198