March 24, 2017
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CIM Definition Standards
November 2010
On November 27 2010, CIM Council approved the CIM Standing Committee on Reserve Definitions' request for an update of CIM Definition Standards on Mineral Resources and Mineral Reserves .

The new version includes changes to maintain compatibility with the new version of National Instrument 43-101 (NI 43-101), which is expected to become law in 2011. The Standing Committee on Reserve Definitions has completed this work.

The Canadian Securities Administrators (CSA) have always referenced the definitions and categories of Mineral Resources and Mineral Reserves used in NI 43-101 to CIM Definition Standards for Mineral Resources and Mineral Reserves.

In October 2010, securities staff agreed that the new version of NI 43-101 could be modified to reference CIM Definitions for pre-feasibility and feasibility, if CIM inserted these definitions before December 2010.

In 2011, the CIM Standing Committee on Reserve Definitions plans to review all CIM definitions and consider, where appropriate, the integration of CRIRSCO “Core Definitions” into CIM Definition Standards on Mineral Resources and Mineral Reserves.

PDF - CIM Definition Standards for Mineral Resources & Mineral Reserves 2010

PDF - Normes de l'ICM sur la Definition pour les Resources Minerales et Reserves Minerals - 2010


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December 2005
CIM Definition Standards on Mineral Resources and Mineral Reserves

The CIM Definition Standards on Mineral Resources and Reserves (CIM Definition Standards) establish definitions and guidelines for the reporting of exploration information, mineral resources and mineral reserves in Canada.

The Mineral Resource and Mineral Reserve definitions were incorporated, by reference, in National Instrument 43-101 - Standards of Disclosure for Mineral Projects (NI 43-101), which became effective February 1, 2001, and updated in December 2005.

On December 11, 2005, CIM Council adopted an update to the CIM Definition Standards to reflect the more detailed guidance available and effect certain editorial changes required to maintain consistency with current regulations.

PDF - CIM Definition Standards for Mineral Resources and Mineral Reserves - 2005

PDF - Normes de l'ICM sur la Definition pour les Resources Minerales et Reserves Minerals - 2005


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August 2000
CIM Definition Standards on Mineral Resources and Mineral Reserves

Adopted in 2000.

PDF - CIM Definition Standards on Mineral Resources and Mineral Reserves 2000


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