Section 85.1906 - Report filing: Record retention(a) The reports required by §§ 85.1903 and 85.1904 shall be sent to the Designated Compliance Officer as specified at 40 CFR 1068.30 .(b) The information gathered by the manufacturer to compile the reports required by §§ 85.1903 and 85.1904 shall be retained for not less than five years from the date of the manufacture of the vehicles or engines and shall be made available to duly authorized officials of the EPA upon request.42 FR 28128, June 2, 1977, as amended at 44 FR 61962, Oct. 29, 1979; 81 FR 73973 , Oct. 25, 2016