The amendments were brought in March 2009. There were draft regulations issued in the first week of July 2009. I was chair of the foreign investment review committee at the time, and the CBA provided comments by the deadline, which I think was August 31, 2009. I understand it went back to the government, and nothing has really happened since. I can't provide you with an explanation as to why.
On March 24th, 2011. See this statement in context.