(a) Within 15 days after service of a notice of violation, or such longer period as the Chairman may grant for good cause, the respondent may submit written information about the violation to the Chairman. The Chairman shall consider any information so submitted in determining the facts surrounding the violation and the amount of the civil fine.

(b) The Chairman shall serve a copy of the proposed assessment on the respondent within thirty (30) days after the notice of violation was issued, when practicable.

(c) The Chairman may review and reassess any civil fine if necessary to consider facts that were not reasonably available on the date of issuance of the proposed assessment.