In June 2009, the British Columbia Securities Commission, on behalf of the CSA NI 43-101 Revision Committee, requested that CIM consider several issues associated with the reporting of Resources and Reserves.
Reasonable Prospects for Economic Extraction
In particular, CSA asked CIM to consider providing additional guidance on how qualified persons should determine reasonable prospects of economic extraction for the purposes of establishing mineral resources.
The CIM Reserve Definitions Committee (the Committee) has reviewed the request to provide additional guidance on the "reasonable prospects for economic extraction" clause in the CIM Definition Standards and has reported the findings.
PDF- Additional Guidance - Reasonable Prospects for Economic Extraction (12/15/2009)