With respect to pressure-treated lumber: ( a ) what chemicals are approved for use in treating pressured lumber/wood; ( b ) what are the accepted levels for each of these chemicals used to treat this lumber; ( c ) what testing procedures has the federal government established to ensure companies use satisfactory levels; and ( d ) what has the government done to ensure there are ample health safeguards from these materials both before and after installation?
In the House of Commons on October 19th, 1998. See this statement in context.