(a) An attorney employed as in-house counsel, as that term is defined in section 522.1(a) of this Part, shall file an application in accordance with section 522.2 of this Part within 90 days of the later of commencement of such employment or April 15, 2020;

(b) An application filed within the period required by subdivision (a) of this section shall be deemed to be timely whether or not the Appellate Division acts on the application within that period;

(c) Failure to comply with the provisions of this Part shall be deemed professional misconduct, provided, however, that the Appellate Division may upon application of the attorney grant an extension upon good cause shown.