40 CFR 63.2998 - What records must I maintain?
(b) The OMM plan.
(d) Records of maintenance and inspections performed on the control devices.
(e) If an operating parameter deviation occurs, you must record:
(1) The date, time, and duration of the operating parameter deviation;
(2) A brief description of the cause of the operating parameter deviation;
(3) The dates and times at which corrective actions were initiated and completed;
(4) A brief description of the corrective actions taken to return the parameter to the limit or to within the range specified in the OMM plan; and
(g) If you operate your process or control device under alternative operating condition and have established operating limits for each condition as specified in § 63.2989(c), then you must keep records of the date and time you changed operations from one condition to another, the condition under which you are operating, and the applicable operating limits for that condition.