I actually don't think so. I've had the archivist say he falls heir to an awful lot of gifts left over, but there is in fact a Treasury Board policy. The policy is that it's left up to the individual departments to decide what to do with forfeited gifts. Most departments, I believe, have rules and several options as to what will happen to those gifts. Sometimes they're sold, sometimes they're in surplus, and sometimes they're auctioned off for charity. They do a variety of different things, all of which is okay under the general rules.
On March 2nd, 2009. See this statement in context.