2.6: Exterior Light Pollution

(5 points)

Exterior Light Pollution: Path A or B (5 points)

GREEN GLOBES #2.6.1 - ANSI #7.6

There are two paths available for assessing exterior light pollution: 

• (#2.6.1.1) Path A: Lighting Design Performance: 5 points

OR 

• (#2.6.1.2) Path B: Prescriptive Lighting Requirements: 5 points

Points cannot be combined between paths. Select one of the paths.

PATH A.

GREEN GLOBES #2.6.1.1 - ANSI #7.6.1.1 Has an engineer or lighting professional created a lighting design that meets all the performance requirements of the IDA - IES Model Lighting Ordinance?

• Yes (5 points)
• No (0 points)
• N/A

Assessment Guidance

Not applicable where there is no site lighting.

References 

• IDA – IES Model Lighting Ordinance (MLO, 2011)

Recommended Documents 

• Electrical engineer’s site lighting plan with illuminance computations spaced no more than 10 ft. (3.05 m) apart

PATH B.

GREEN GLOBES #2.6.1.2.1 - ANSI #7.6.2.1 Does exterior lighting avoid exceeding prescribed values for the amount of light per unit of the area?

• Yes (1 point)
• No (0 points)
• N/A

Assessment Guidance

Not applicable where there is no exterior lighting.

References 

• IDA – IES Model Lighting Ordinance (MLO), Tables A and B, 2011

Recommended Documents

• Exterior lighting plans 
• Cut-sheets and calculations

GREEN GLOBES #2.6.1.2.2 - ANSI #7.6.2.2 Does exterior lighting trespass avoid exceeding prescribed Backlight, Uplight and Glare (BUG) ratings?

• Yes (3 points)
• No (0 points)
• N/A

Assessment Guidance

Prescribed ratings are per IDA – IES Model Lighting Ordinance (MLO), Table C for the following: 

• Backlight trespass; 
• Uplight trespass; and 
• Glare

Not applicable where there is no exterior lighting.

References 

• IDA – IES Model Lighting Ordinance (MLO), Tables C, C1, C2, 2011

Recommended Documents

• Path taken for compliance to the MLO 
• Exterior lighting plans

GREEN GLOBES #2.6.1.2.3 - ANSI #7.6.2.3 Does parking lot lighting avoid emitting light above 90 degrees from the vertical axis?

• Yes (1 points) 
• No (0 points) 
• N/A

Assessment Guidance

Not applicable where there is no parking lot lighting.

Recommended Documents 

• Zoning ordinance requirements 
• Narrative describing which lighting zone the property falls under 
• Exterior lighting plans

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