(a) Except as provided in paragraph (b) of this section, the Office may assess an individual civil penalty against any corporate director, officer or agent of a corporate permittee who knowingly and willfully authorized, ordered or carried out a violation, failure or refusal.

(b) The Office shall not assess an individual civil penalty in situations resulting from a permit violation by a corporate permittee until a cessation order has been issued by the Office to the corporate permittee for the violation, and the cessation order has remained unabated for 30 days.