| Practice Number | Practice | Points Available with this Product | Additional Conditions of Use to Earn Points | Manufacturer's Comments |
| 606.1 | Biobased products are used. 8 points maximum awarded. | 6 | To earn 6 points this product must be at least 1% of the construction material cost AND another bio-based product, also at 1% of material cost, must be used. Lesser points are available at the 0.5% level. | iLevel products are made from trees, a natural and renewable resource. |
| 606.2(2) | A minimum of 2 wood or wood-based products used for major elements are certified to the requirements of a recognized product program. | 4 | To earn 4 points a second certified wood product must also be used as a major element for 4 points. Lesser points available for use with a minor element. | iLevel manufacturing facilities in the U.S. and Canada are independently certified to sustainable forestry standards as well as all Weyerhaeuser timberlands, ensuring the availability of forests for future generations. |
| 609.1 | A more environmentally preferable product selected based upon a Life Cycle Assessment (LCA). | 3 | None. | Framing a house with wood products uses about 16% less embodied energy than a house built with steel or concrete and releases 25% fewer CO2 emissions. (CORRIM) |
| 610.1 | Product manufacturer’s operations are ISO 14001 certified. The value of building products from ISO 14001 facilities is 1% or more of the est. total building materials cost. | 2 | Points are awarded at 1 point per one percent of building material costs. Material cost breakdown to be verified and points adjusted to reflect actual percentage of all products from 14001 facilities. | We are committed to reducing our environmental footprint. Since 1999, Weyerhaeuser has reduced water usage by 27%, waste going into landfills by 49%, and energy consumption by 23%. |
| 606.3 | Materials used for major components are manufactured using a min. of 33% of the primary manufacturing process energy from renewable sources, combustible waste sources, or renewable energy credits (RECs). | 2 | Product must be used as a major component of the building. | More than half of the energy needed to make iLevel building materials comes from by-products of the manufacturing process. |