Under the plan, the EPA auctions a set number of sulfur dioxide emission allowances annually, with each allowance permitting one ton of emissions.

Under the Clean Air Act plan, the EPA auctions a set number of sulfur dioxide emission allowances annually, with each allowance permitting one ton of emissions.

Explanation:

One of the national initiatives to implement this EPA plan is to reduce air pollution from the most important sources of emissions. EPA is taking steps to eliminate or minimize emissions from coal-fired power plants, acid, glass and cement manufacturing plants, and oil refineries.

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