44 CFR § 1.13
Participation by interested persons
May 13, 2020
(a) Unless the notice otherwise provides, any interested person may participate in rulemaking proceedings by submitting written data, views or arguments within the comment time stated in the notice. In addition, the Administrator may permit the filing of comments in response to original comments.
(b) In appropriate cases, the Administrator may provide for oral presentation of views in additional proceedings described in §1.14.
(c) Copies of regulatory flexibility analyses shall be furnished the Chief Counsel for Advocacy of the Small Business Administration.