CFR 40-63.1439-2014 Protection of Environment. Part63:National emission standards for hazardous air pollutants for source categories (continued). Section63.1439:General recordkeeping and reporting provisions.
(a) Data retention. Unless otherwise specified in this subpart, the owner or operator of an affected source shall keep copies of all applicable records and reports required by this subpart for at least 5 years. All applicable records shall be mainta
CFR 40-63.1439-2014 history
2014CFR 40-63.1439-2014 Protection of Environment. Part63:National emission standards for hazardous air pollutants for source categories (continued). Section63.1439:General recordkeeping and reporting provisions.