Ton

Ton means 2,000 pounds. For the purpose of determining compliance with the CAIR NOX emissions limitation, total tons of nitrogen oxides emissions for a control period shall be calculated as the sum of all recorded hourly emissions (or the mass equivalent of the recorded hourly emission rates) in accordance with subpart HH of this part, but with any remaining fraction of a ton equal to or greater than 0.50 tons deemed to equal one ton and any remaining fraction of a ton less than 0.50 tons deemed to equal zero tons.

Source

40 CFR § 96.102

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Scoping language

The terms used in this subpart and subparts BB through II shall have the meanings set forth in this section as follows:

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