An Open Access Policy was adopted by the Canadian Breast Cancer Research Alliance (CBCRA) in April 2007. This policy was revised in April 2009, and can be accessed via the CBCRA Open Access Archive subsection of the Research Program section of the CBCRA website. The CBCRA OA Policy has changed from a request to a requirement.
Revised Policy [PDF]. Excerpt:
CBCRA requires that grant holders supply an electronic copy of final, accepted manuscripts funded in whole or in part by CBCRA grants, to be posted in the CBCRA Open Access Archive, as soon as possible after publication. A publisher’s embargo period of up to six months will be permitted. The document must be either a publisher-generated PDF or the author’s final, accepted version, including changes introduced by the peer review process.
The first sentence of the previous policy was:
CBCRA requests that grant holders supply an electronic copy of final, accepted manuscripts funded in whole or in part by CBCRA grants.
Note that the word “requests” in this first sentence has been replaced by “requires” in the revised policy.
For a post by Peter Suber in Open Access News about the previous policy, see: CBCRA formally requests OA to the research it funds, October 2, 2007. (Coverage of CBCRA in Open Access News can be searched via: http://tinyurl.com/lcmzfu).

Jim Till said
A message posted on the CBCRA website states (in part) that: “… we will be concluding CBCRA in its present form at the end of Phase III. As of April 1, 2010, no new CBCRA research programs will be launched and the secretariat will be closed“.
It’s not stated anywhere in the message whether or not the Open Access Archive of the CBCRA (currently hosted by the University of Toronto Libraries) will continue to be available online.