California's Green Building Landscape
California leads the nation in sustainable building regulation. CALGreen (California Green Building Standards Code, Title 24 Part 11) is the first mandatory statewide green building code in the United States. It sets minimum environmental standards for all new construction and major renovations, including requirements for construction waste diversion, material selection, and energy efficiency.
CALGreen mandates that at least 65% of non-hazardous construction and demolition waste be diverted from landfills. Using reclaimed lumber directly supports this requirement by keeping wood out of the waste stream. Projects that exceed the 65% threshold can earn additional points toward voluntary CALGreen Tier 1 or Tier 2 certification.
LA-Specific Requirements
The City of Los Angeles has adopted several green building ordinances that go beyond state minimums. The LA Green Building Code requires LEED Silver certification (or equivalent) for all new city-funded buildings over 7,500 square feet. The city's Green New Deal targets zero waste to landfill by 2050, creating a strong regulatory framework that favors material reuse.
The recent LA County Construction and Demolition Debris Recycling Ordinance requires that construction and demolition projects file waste management plans and achieve minimum diversion rates. Salvaging lumber from demolition sites and selling it to reclamation operations like GreenBoard helps contractors meet these requirements.