About Western Wood Preservers Institute
Western Wood Preservers Institute
Headquartered in Vancouver, Washington, the Western Wood Preservers Institute (WWPI) is a nonprofit member trade organization who has represented the interest of the preserved wood products industry throughout western North America for more than 60 years. The membership consists of companies that either manufacture products or are directly affiliated or provide a service to the preserved wood industry. The primary activity areas of the WWPI include regulatory and market outreach programs aimed at sustaining a viable western North America preserved wood industry.
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|(00003) Building Codes|
(02540) Septic Tank System
(06050) Basic Wood and Plastic Materials and Methods
(06060) Wood Material
(06070) Wood Treatment|
(06 05 73) Wood Treatment
(33 36 00) Utility Septic Tanks
(33 36 33) Utility Drainage Field
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