{longname} Q68. 40 CFR §98.33(a)(3)(iii) indicates that "For units that combust municipal solid waste (MSW) and that produce steam, use Equation C-2c of this section". However, Table C-1 indicates that the emission factor for Municipal Solid Waste fuel is "Allowed only for Units that do not generate steam and use Tier 1".
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A68. The footnote is intended to reinforce that Tier 1 cannot be used for units that combust MSW and generate steam. For units that combust MSW and generate steam, Tier 2 and the respective default values from Table C-1 may be used for a unit of any size if the use of Tier 4 is not required.

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Source: This question and answer was derived from a Legacy FAQ

Approval / Publishing History: Version 1

Expiration : None

Relevant Subparts:  Subpart C
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