. . "r inspection procedures in the Emissions Averaging Plan or operating permit application.(n) Records of all information required to calculate emission debits and credits shall be retained for 5 years.(o) Precompliance Reports, Emission Averaging Plans, Notifications of Compliance Status, Periodic Reports, and other reports shall be submitted as required by ??63.506. [62 FR 46925, Sept. 5, 1996, as" . . .