What should we do if the project is eligible for more than one rating system?
As explained in the Rating System Selection Guidance, when several rating systems may be appropriate for your project, use the 40/60 rule. To use this rule, first ‘assign’ a rating system to each gross square foot of the building based on the published guidance. Then, determine the percentage of the building square footage assigned to each rating system. Choose the best rating system depending on the resulting percentages. Be sure to include the entire certifying square footage (but no more) in this exercise.
Note that the 40/60 rule is not applicable when selecting between LEED CI and LEED CS. For additional guidance on using LEED CS versus another rating system, see LEED Interpretation 10102.
- Is my project considered a single building, or is it considered multiple buildings?
- My project does not comply with the USGBC definition of ‘one building’ or LEED Interpretation 10203, but the project works programmatically as a single building. Can I register and submit my project in a single building application?
- Which rating system should we use for our project?
- I want to certify multiple buildings on my site. What are my options?
- When is the last day I can register my LEED 2009 project?
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