Ontario ECA (Air) Update: Ministry's Phasing in of Schedule 3 for All Facilities Starts February 1st, 2019

Phase-in of Schedule 3 Standards

Schedule 3 standards will apply to all facilities as of February 1st, 2020, and the Reg346 model will no longer be an approved dispersion model under O.Reg.419/05.

However, as of February 1st, 2019, all ECA applications must already include ESDM reports showing compliance with Schedule 3 standards and using SCREEN3, AERMOD, or other non-regulatory model with Ministry s7(1) approval (except Reg346).

Applications will be returned if Reg346 is used, or if AERMOD or SCREEN3 are used to demonstrate compliance with a Schedule 2 standard.

 If you have questions, you can contact the Client Services and Permissions Branch by phone at: 416-314-8001 or 1‑800-461-6290; or by e-mail at: enviropermissions@ontario.ca.