The PCO website is the first place to look for proclamation dates of federal legislation – proclamations are published in Canada Gazette Part II, but the Gazette publication is sometimes far later than the Order in Council that brings a federal Act in to force. The PCO maintains the Orders in Council Database.
For example, on October 6, the PCO published Privy Council Order Number: 2011-1164. this is the instrument that says:
Therefore, His Excellency the Governor General in Council, on the recommendation of the Minister of Industry, pursuant to section 372 of the Canada Not-for-profit Corporations Act, chapter 23 of the Statutes of Canada, 2009, hereby fixes October 17, 2011, as the day on which sections 1 to 296, subsections 297(1) and (5), sections 298, 299, 303, 305 to 307 and 309, subsections 311(2) and (5), section 312, paragraphs 313(z.4) and (z.6), sections 314 to 316, subsection 317(1) and sections 318 to 340 of that Act come into force.
That proclamation was published in the October 26, 2011 Canada Gazette
If you were only watching the Gazette for federal in force dates, you would be weeks behind the news.
This week’s research tip: Pay attention to the Privy Council Office