27 CFR 771.55: Content.

(a) Notices for the revocation or denial of renewal of a license or permit shall be promptly issued by the Director of Industry Operations and shall set forth:

(1) The sections of law and regulations relied upon for authority and jurisdiction;

(2) The specific grounds upon which the revocation or denial is based, i.e., the matters of fact constituting the violations specified, dates, places, and sections of law and regulations violated;

(3) In the case of a revocation, the date on which the action is effective; and

(4) That the licensee or permittee has 15 days from receipt of the notice within which to request a hearing before an administrative law judge.

(b) Notices for the denial of an initial application for a license or permit shall set forth:

(1) The sections of law and regulations relied upon for authority and jurisdiction;

(2) The specific grounds upon which the denial is based, i.e., the matters of fact and law relied upon for the disapproval of the application; and

(3) That the application will be disapproved unless a hearing is requested within 15 days from receipt of the notice.