40 CFR 60.585 - Reporting requirements.
(2) Exceedances of the average value of the exhaust vent VOC concentration as defined under § 60.584(a)(2);
(4) Drops in the average temperature of the gas stream immediately before the catalyst bed or drops in the average temperature across the catalyst bed as defined under § 60.584(c)(2).
(c) The reports required under paragraph (b) shall be postmarked within 30 days following the end of the second and fourth calendar quarters.
(d) The requirements of this subsection remain in force until and unless the Agency, in delegating enforcement authority to a State under section 111(c) of the Act, approves reporting requirements or an alternative means of compliance surveillance adopted by such States. In that event, affected sources within the State will be relieved of the obligation to comply with this subsection, provided that they comply with requirements established by the State.