ACQ is an arsenic and chromium-free wood preservative made of copper oxide and a quaternary compound.
It was introduced in North America in 1992 and has a 20-year history of safe, effective use. Registered by the PMRA of Health Canada, ACQ is the most widely-sold pressure-treated wood in Canada. ACQ pressure-treated wood is also standardized by the Canadian Standards Association (CSA-O80) and meets all applicable major model building code requirements in Canada.
ACQ is listed by the NAHB's Research Center's Home Innovation Program as a NGBS Green Certified Product for Resource Efficiency and is eligible to contribute points towards the certification of homes and buildings under the National Green Building Standard™. ACQ wood preservative won the 2002 US EPA Presidential Green Chemistry Challenge Award. Recycled copper is used in the making of the ACQ, reducing the carbon footprint of its manufacture.
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