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FAQs about MRc4 :

How do you know if a lamp meets the NEMA guidelines, and can therefore be excluded?

The project building includes a significant amount of process lighting (i.e. sports arena lighting or studio lighting). Do these lamps need to be included?

There are no mercury-containing lamps installed in the project building. Can we upload a signed statement from our property manager instead of completing the credit form and documentation?

A large multi-tenant project does not have a uniform lighting standard, therefore there are a number of different types of lamps are installed on the project. How should we go about documenting this credit?

Do we need to provide a purchasing plan if the lamp inventory of currently installed lamps shows that the average mercury content is already below 90 picograms per lumen-hour?

Do lamps for task lighting need to be included in the purchasing plan?

Do mercury-free lamps need to be included in Table MRc4-1 Lamp Purchasing Plan and Table MRc4-2 Performance Period Lamp Purchasing?

All of the outdoor fixtures in the project building are mercury-free. Can we exclude all outdoor fixtures from the purchasing plan?

The project building is a large multi-tenant building and tenants are responsible for their own lamp purchases. Can lamps in tenant spaces be excluded?

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Forum discussion

EBOM-2009 MRc4:Sustainable Purchasing—Reduced Mercury in Lamps

Low Mercury Credit - Cafeteria Kitchen Equipment

Sara Zoumbaris

Sustainable Design Consulting

LEEDuser Basic Member

20 thumbs up

Project location :

December 29, 2015

Hello, Although I am pursuing this credit as ID for LEED-CI, I am posting this question here. We are working on a LEED-CI Retail cafeteria which includes several micro-restaurant options in it with food serving stations and display cases. Are we required to include the lighting in these cases and serving stations within this credit when performing the calculation etc? Thank You!

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Trista Brown

Project Director

WSP USA

LEEDuser Basic Member

381 thumbs up

Mon, 01/04/2016 - 21:24

Hi Sara, you're allowed to exclude up to 10% of lamps in the building. It sounds like these are good candidates for exclusion.

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