580.4—Contents of notice.
The notice required by § 580.3 of this part shall:
(a)
Set forth the determination of the Administrator as to the amount of the penalty and the reason or reasons therefor;
(b)
Set forth the right to take exception to the assessment of penalties and set forth the right to request a hearing on such determination;
(c)
Inform any affected person or persons that in the absence of a timely exception to a determination of penalty and a request for a hearing received within 15 days of the date of receipt of the notice, the determination of the Administrator shall become final and unappealable; and
(d)
Set forth the time and method for taking exception to the determination and requesting a hearing, and the procedures relating thereto, as set forth in § 580.6 of this part.