Commencing on January 1, 2010, the Greenhouse Gas Reporting Regulation applies to facilities in Ontario emitting greater than 25,000 tonnes of carbon dioxide equivalent per year from a list of identified sources. Facilities emitting between 10,000 and 25,000 tonnes will not be subject to the reporting requirements. But, the Ministry of the Environment plans to encourage smaller emitters to report emissions voluntarily to ensure that they are prepared to adapt to emerging North America-wide requirements.
Ontario's reporting threshold aligns with the U.S. Environmental Protection Agency's mandatory GHG reporting threshold of 25,000 tonnes of CO2 and the introduction of the American Clean Energy and Security Act to establish a cap and trade system. However, unlike the U.S. approach, Ontario does not currently regulate fuel suppliers to report emissions attributable to the combustion of their products in transportation, residential, commercial or other industrial sectors.
The emitters (between 200 and 300 facilities) include general stationary combustion, electricity generation, and petrochemical production among others are required to report on 30 Greenhouse Gases listed in the Regulation for inclusion in their CO2 calculations. The various reporting requirements contained in the Regulation will be phased in over the next three years in order to allow facilities to develop the necessary capacity to comply with the standardized emissions quantification methods as well as third party verification requirements.