APA - The Engineered Wood Association

Green Verification Reports

APA Green Verification Reports (GR) help building officials and design professionals determine a product's eligibility for points under recognized green building standards.  APA issues these reports to document the compliance of an engineered wood product that is manufactured under a quality program audited by APA to specific international, national, or industry recognized green building standards.

APA Green Verification Reports are assigned based on product classes, as shown below:

  • L-Series: Products manufactured from lumber, veneer or other wood base for use as lumber or timber substitutes, such as glulam, I-joists, and structural composite lumber (SCL)
  • N-Series: Products manufactured from non-veneer (mat-formed) substrates, such as oriented strand board (OSB)
  • V-Series: Products manufactured from all veneers, such as plywood
  • C-Series:  Products manufactured from composite substrates, such as hardboards, mixed with at least a veneer lamina
The following Green Verification Reports are available to download in PDF format:

L Series


Related Information


Green Building Fact Sheets:

Trends in Wood Buildings (213 KB PDF)

Wood and Green Building - Why using wood from North American forests is a sustainable choice (217 KB PDF)

U.S. Wood Products - Good for jobs, rural communities and the environment (220 KB PDF)


CORRIM (Consortium for Research on Renewable Industrial Materials) fact sheets:

Maximizing Forest Contributions to Carbon Mitigation, Fact sheet 5 (416 KB PDF)

Product and Process Environmental Improvement Analysis for Buildings, Fact sheet 6 (166 KB PDF) 

Wood and Green Building fact sheets produced by the Wood Promotion Network:

LEED® vs. Green Globes™, Form WP G330 (778 KB PDF)

Home Builder Guidelines, Form WP G335 (769 KB PDF)

The Role of Life Cycle Assessment, Form WP G340 (901 KB PDF)

Using Wood to Fight Climate Change, Form WP G345 (773 KB PDF)


Related Publication:

Wood: Sustainable Building Solutions, Form F305 (3 Mb)