CPA sponsors the key product standards for the industry and addresses technical issues bearing on product acceptance. As a highly–regarded and accredited standards developer, the association sponsors the development and maintenance of industry product standards through the American National Standards Institute (ANSI) consensus process.


CPA sponsors the following ANSI product standards:

208.1 Particleboard Standard
208.2 Medium Density Fiberboard Standard
135.4 Hardboard Standard
135.5 Prefinished Basic Paneling Standard
135.6 Engineered Wood Siding Standard
135.7 Engineered Wood Trim Standard

Standards may be purchased through CPA's Bookstore

Eco-Certified Composite (ECC) Program

The Eco-Certified CompositeTM (ECC) Sustainability Standard is the voluntary industry standard developed by the Composite Panel Association (CPA) for manufacturers of composite wood or agrifiber-based panels, as well as finished products (including components and laminated panels) made with particleboard, medium density fiberboard (MDF), hardboard, engineered wood siding and engineered wood trim.  The standard focuses on life cycle inventory and other verifiable environmental practices and highlights the responsible use of wood fiber by composite panel manufacturers. The basis of the standard includes the CPA Carbon Calculator, a tool developed by a third party expert to assess the life cycle and carbon footprint of composite panels made at a particular manufacturing plant.

California Formaldehyde Regulation (CARB rule)

CPA was the first Third Party Certifier (TPC) in the world to be approved by the California Air Resources Board (CARB).  Since that date of May 14, 2008, CPA has been certifying manufacturers to the CARB rule. 
CPA is now certifying North American manufacturers of particleboard, MDF, and hardwood plywood for CARB.  CPA is also operating an Ultra-Low Emitting (ULEF) and No Added Formaldehyde (NAF) Audit Program for those panel manufacturers seeking a CARB exemption for their ULEF or NAF products.  Any North American panel manufacturer wishing to become certified to the CARB rule should contact Gary Heroux.

Find CARB Compliant Products


Several standards have been retired by CPA and are no longer in use. These pertain to moisture resistance and the Environmentally Preferred Product (EPP) and Grademark programs. MORE INFO




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