First-in, first-out.

(2) First-in, first-out. The Administrator will deduct CAIR NOX allowances under paragraph (b) or (d) of this section from the source's compliance account, in the absence of an identification or in the case of a partial identification of CAIR NOX allowances by serial number under paragraph (c)(1) of this section, on a first-in, first-out (FIFO) accounting basis in the following order:


40 CFR § 97.154

Scoping language

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