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Electronic Code of Federal Regulations

e-CFR data is current as of December 5, 2019

Title 40Chapter ISubchapter CPart 63Subpart TTTTT → §63.9933


Title 40: Protection of Environment
PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES (CONTINUED)
Subpart TTTTT—National Emissions Standards for Hazardous Air Pollutants for Primary Magnesium Refining


§63.9933   In what form and how long must I keep my records?

(a) Your records must be in a form suitable and readily available for expeditious review, according to §63.10(b)(1).

(b) As specified in §63.10(b)(1), you must keep each record for 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 can keep the records off site for the remaining 3 years.

(d) You must keep your fugitive dust emissions control plan and your operation and maintenance plan on-site according to the requirements in §§63.9891(d) and 63.9900(c).

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