RS Market Integrity Notice - Notice of Amendment Approval - Provisions Respecting Client Priority

MARKET REGULATION SERVICES INC.

AMENDMENT TO THE UNIVERSAL MARKET INTEGRITY RULES

AMENDMENTS TO RULE 5.3 AND POLICY 5.3 -- PROVISIONS

RESPECTING CLIENT PRIORITY

NOTICE OF COMMISSION APPROVAL

The Ontario Securities Commission has approved amendments to Rule 5.3 and Policy 5.3 of the Universal Market Integrity Rules (UMIR) dealing with client priority. In addition, the other applicable securities regulatory authorities have also approved the amendments. A copy and description of the amendments were published on June 10, 2005 at (2005) 28 OSCB 5280. Four comment letters were received. The final version of the amendments and a summary of the comments received are published in Chapter 13 of this Bulletin.