A LEED project requires tracking of regional materials. Materials are considered regional if they are extracted, harvested, or recovered, as well as manufactured within what distance of the project site?
Correct Answer
D) 500 miles
Under LEED standards, materials are considered regional if they are extracted, harvested, or recovered, as well as manufactured within 500 miles of the project site.
Why This Is the Correct Answer
LEED (Leadership in Energy and Environmental Design) standards specifically define regional materials as those that are extracted, harvested, or recovered AND manufactured within 500 miles of the project site. This 500-mile radius requirement is established to encourage the use of local materials, which reduces transportation costs and environmental impact while supporting the local economy. Both extraction/harvesting AND manufacturing must occur within this 500-mile radius to qualify as regional materials under LEED certification requirements.
Why the Other Options Are Wrong
Option A: 300 miles
100 miles is too restrictive and would severely limit material options for most projects, making it impractical for LEED compliance.
Option B: 1000 miles
300 miles is less than the actual LEED requirement and would unnecessarily restrict the pool of qualifying regional materials.
Option C: 100 miles
1000 miles exceeds the LEED standard and would be too broad to effectively promote local sourcing and reduce transportation impacts.
Memory Technique
Think 'LEED 500' - the number 500 rhymes with 'LEED' and represents the maximum miles for regional materials (both sourcing and manufacturing)
Reference Hint
Look up LEED Green Building Rating System or sustainable construction practices chapter in your contractor reference manual
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