40 CFR § 62.15315
What reports must I submit and in what form?
June 9, 2020
(a) Submit an initial report and annual reports, plus semiannual reports for any emission or parameter level that does not meet the limits specified in this subpart.
(b) Submit all reports on paper, postmarked on or before the submittal dates in §§62.15325, 62.15335, and 62.15350. If the Administrator agrees, you may submit electronic reports.
(c) Keep a copy of all reports required by §§62.15330, 62.15340, and 62.15355 onsite for 5 years.