§ 63.1165 Recordkeeping requirements.
(a) General recordkeeping requirements. As required by § 63.10(b)(2) of subpart A of this part, the owner or operator shall maintain records for 5 years from the date of each record of:
(1) The occurrence and duration of each malfunction of operation (i.e., process equipment);
(2) The occurrence and duration of each malfunction of the air pollution control equipment;
(3) All maintenance performed on the air pollution control equipment;
(4) Actions taken during periods of malfunction to minimize emissions in accordance with § 63.1259(c) and the dates of such actions (including corrective actions to restore malfunctioning process and air pollution control equipment to its normal or usual manner of operation);