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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

Using as ID credit in New Construction, indoor & outdoor

Sarah Corbitt

Assoc AIA, LEED AP BD+C

Hanbury

LEEDuser Basic Member

17 thumbs up

March 22, 2011

I'm working on a project which is using this credit as an ID credit for LEED-NC. Must outdoor lights be included? Does that mean all exterior lighting of the building, as well as areas such as the parking lot? The project is the athletic fieldhouse (coaches offices) for an athletic campus of a public university, but we are using NC rather than Schools.

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Tristan Roberts

Representative

Vermont House of Representatives

LEEDuser Expert

7780 thumbs up

Tue, 03/29/2011 - 01:26

Sarah, the credit is intended to apply to the building as well as grounds. I would include all of the grounds in your LEED boundary, which most likely does include the parking lot, from what you say.If you're adapting this to be an ID credit for NC, you may have more leeway in defining it as you wish, but I would see that as an uphill battle.

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