Which of the following products will be eligible for points toward Materials and Resources Credit, Environmentally Preferable Products, Option 1: Local Production?

The LEED v4 for Homes MR Credit: Environmentally Preferable Products rewards the use of materials that are sourced and processed locally to reduce transportation impacts. To qualify for the local production criteria, products must be extracted, harvested, or recovered, as well as manufactured, within a 100-mile (160 km) radius of the project site. Option C describes wood studs harvested and manufactured within a 98-mile radius, which falls within this requirement. The calculation is based purely on distance, irrespective of state or national borders.

A. The granite was extracted in China, which is thousands of miles from the New York City project site, far exceeding the 100-mile local radius.
B. The 750-mile radius is significantly greater than the 100-mile requirement for a product to be considered locally produced under this credit.
D. The manufacturing, assembly, and installation locations are all thousands of miles apart, clearly disqualifying the product as locally sourced.

1. U.S. Green Building Council. (2015). LEED v4 for Homes Design and Construction Reference Guide. Washington, DC: U.S. Green Building Council. p. 317, MR Credit: Environmentally Preferable Products, "Step-by-Step Guidance," details the calculation methodology which includes valuing products sourced within 100 miles (160 km) of the project.

2. U.S. Green Building Council. (2021). LEED v4.1 Homes and Multifamily Rating System. Washington, DC: U.S. Green Building Council. p. 58, MR Credit: Environmentally Preferable Products, describes the intent "To encourage the use of products and materials with preferable life-cycle impacts." The 100-mile radius is a core component of this evaluation.

3. University of Florida, Program for Resource Efficient Communities. (n.d.). LEED for Homes Green Rater Training. Courseware materials on Materials & Resources, slide on "MRc2: Environmentally Preferable Products," explicitly states the 100-mile radius for products to be considered "local."