For the purpose of determining the compliance of an emission unit with an applicable limitation, standard, or permit conditions, unless otherwise specified by 35 Ill. Adm. Code Subtitle B, the arithmetic average of at least three valid test runs may be used, subject to the limitations and conditions contained in this Part. The emissions tests averaging procedure set forth in this Part may not be used for determining the compliance status of the following types of emission units:
Ill. Admin. Code tit. 35, § 283.120
Expedited correction at 25 Ill. Reg. 9657, effective September 11, 2000