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FAQs about MRc4 :

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?

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?

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Forum discussion

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

Applicable to LEED NC 2009?

Eamon Geary

Sustainability Director - Facilities

Michael Baker Jr, Inc.

LEEDuser Basic Member

49 thumbs up

April 4, 2011

Our staff has utilized this credit in multiple 2.2 projects successfully. However, with the change to CIR's in 2009, does that eliminate our ability to use this ID credit for a LEED NC 2009 project? Thanks!

Post a reply

Kimberly Frith

LEEDuser Basic Member

210 thumbs up

Mon, 04/04/2011 - 16:49

I would recommend looking at the documentation required for EBOM MRp1 and MRc4 including the sample credit forms and any required uploads in LEED Online version 3. The way we pursue the Green Housekeeping credit for LEED NC 2009 projects is by documenting that the project is complying with the EBOM IEQp3 requirements, so I think following that same path for reduced mercury would be acceptable.

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