US Green Building Council Exam LEED-AP-BD+C Topic 9 Question 14 Discussion

Actual exam question for US Green Building Council's LEED-AP-BD+C exam

Question #: 14
Topic #: 9

To achieve the Sustainable Sites Credit, Light Pollution Reduction, Option 1. BUG Rating Method, projects must demonstrate:

AAll luminaires have full cutoff fixtures

BAll luminaires are mounted at least three mounting heights from the lighting boundary

CAll luminaires have a minimum color temperature of 3500 K

DAll luminaires meet acceptable fixture ratings for the project's Model Lighting Ordinance (MLO) lighting zone

Show Suggested Answer

Suggested Answer: D

Detailed

Under the BUG Rating Method, all luminaires must meet acceptable fixture ratings (Backlight, Uplight, and Glare ratings) for the project's Model Lighting Ordinance (MLO) lighting zone. This ensures compliance with LEED's Light Pollution Reduction credit by limiting light trespass, reducing glare, and preserving night sky quality.

by Theresia at May 04, 2025, 03:06 PM

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Tonette

9 days ago

Wait, is the 'BUG' rating method referring to the actual bugs attracted to the lights? Because that would be a whole other level of sustainable design.

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Dianne

23 days ago

D) All luminaires meet acceptable fixture ratings for the project's Model Lighting Ordinance (MLO) lighting zone. This makes the most sense to me, as meeting the local lighting regulations is crucial for compliance.

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Francisca

1 days ago

A) All luminaires have full cutoff fixtures

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