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Upcoming change to how you log in to the Environmental Registry of Ontario (ERO)
Starting March 18, 2026, the Environmental Registry of Ontario (ERO) will begin using Public Secure / My Ontario Account for logging in. Please note that to implement this change, the ERO site will be unavailable for all users on March 18 from 5:00 p.m. to approximately 9:00 p.m. During this time, the ERO webpage will display a maintenance message.