CNSC letter to Bruce Power regarding regulatory hold point 4 (Bruce A Unit 3)

June 02, 2026

Mr. Maury Burton
Senior Director, Regulatory Affairs
Bruce Power Inc.
177 Tie Road
Tiverton, Ontario N0G 2T0

Subject: Bruce NGS, Unit 3: Removal of Regulatory Hold Point For increasing above 35% full power, major component replacement

Dear Mr. Burton:

The purpose of this letter is to respond to Bruce Power’s request [1] to remove the fourth regulatory hold point (RHP-4), allowing an increase above 35% full power in Bruce A Unit 3, following the Major Component Replacement outage. This request is pursuant to Licence Condition 15.5 of the Bruce Nuclear Generating Stations A and B Power Reactor Operating Licence 18.04/2028.

Canadian Nuclear Safety Commission (CNSC) staff’s assessment [2] concluded that Bruce Power has met all of the pre-requisites established by the Commission to remove this hold point. As a person authorized by the Commission, I confirm that RHP-4 is hereby removed, and reactor power can now be increased above 35% full power in Unit 3.

Sincerely,

Ramzi Jammal
Executive Vice-President and
Chief Regulatory Operations Officer
Regulatory Operations Branch

c.c.: A. Viktorov, A. Bulkan, Bruce RPD (CNSC)
M. Rinker (Bruce Power)

References:

1. Bruce Power Letter, M. Burton to R. Jammal, “Bruce A Unit 3: Request to Release of Regulatory Hold Point, Phase D Major Component Replacement”, March 16, 2026, BP-CORR-00531-06841.
2. CNSC staff document, “Request by Bruce Power to Remove Regulatory Hold Point 4 for Prior to Increase Above 35% Full Power for Unit 3”, dated June 02, 2026.