Ontario’s Emissions Trading Program Data

This historic dataset includes data reported under Ontario’s now revoked Emissions Trading Program regulations (O. Reg. 397/01: Emissions Trading and O. Reg. 194/05: Industry Emissions - Nitrogen Oxides and Sulphur Dioxide). The Emissions Trading Program ended in February 2021, as the program achieved its objectives by meeting its emission reduction obligations and targets. The program set limits for nitrogen oxides (NOX) and sulphur dioxide (SO2) emissions from regulated facilities and allowed for the transfer or trade of emission allowances and credits between facilities, to provide flexibility for compliance. Regulated facilities included Ontario's large electricity generators, and petroleum, iron and steel, pulp and paper, flat glass, cement, carbon black, and base metal smelting facilities.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 18:16 (UTC)
Created	April 17, 2026, 18:16 (UTC)
contact_person	{"en": "Government of Ontario; Government of Ontario; Environment, Conservation and Parks", "fr": "Gouvernement de l'Ontario; Gouvernement de l'Ontario; Environment, Conservation and Parks"}
criticality_level	[]
data_dictionary	unknown,unknown,unknown
geographic_scope	[]
open_canada_collection	fgp
open_canada_date_published	2023-01-06 00:00:00
open_canada_keywords	{"en": ["emissions", "environment", "electricity generation", "industry emissions", "allowances", "nitrogen oxides", "sulphur dioxide", "emissions trading", "Environment and Natural Resources", "Greenhouse gas emissions", "Government information"], "fr-t-en": ["émissions", "environnement", "production d'électricité", "émissions de l'industrie", "allocations", "oxydes d'azote", "dioxyde de soufre", "échange de droits d'émission", "Environnement et ressources naturelles", "émissions de gaz à effet de serre", "Information gouvernementale"]}
open_canada_subject	["economics_and_industry"]
sensitivity_level	unrestricted
title_fr	Données du Programme d’échange de droits d’émissions de l’Ontario
update_frequency	unknown