45 CFR § 170.525
Application submission
April 14, 2021
(a) An applicant for ONC-ACB or ONC-ATL status must submit its application either electronically via email (or Web site submission if available), or by regular or express mail.
(b) An application for ONC-ACB or ONC-ATL status may be submitted to the National Coordinator at any time.
[81 FR 72465, Oct. 19, 2016]