40 C.F.R. § 63.2394
In what form and how long must I keep my records?
Cite as 40 C.F.R. § 63.2394 (2026)
(a) Your records must be in a form suitable and readily available for expeditious inspection and review according to § 63.10(b)(1), including records stored in electronic form at a separate location. (b) As specified in § 63.10(b)(1), you must keep your files of all information (including all reports and notifications) for at least 5 years following the date of each occurrence, measurement, maintenance, corrective action, report, or record. (c) You must keep each record on site for at least 2 years after the date of each occurrence, measurement, maintenance, corrective action, report, or record, according to § 63.10(b)(1). You may keep the records off site for the remaining 3 years. [69 FR 5063, Feb. 3, 2004, as amended at 71 FR 42911, July 28, 2006]
- Cross-references to the CFR
- 63.10