Any certified applicator who violates 7 U.S.C. 136i-1(a), (b), or (c) or this part shall be subject to a civil penalty of not more than the amount specified in section § 3.91(b)(1)(i)(A) of this title in the case of the first offense, and in the case of subsequent offenses, be subject to a civil penalty of not less than the amount specified in § 3.91(b)(1)(i)(B) of this title for each violation, except that the civil penalty shall be less than the amount specified in § 3.91(b)(1)(i)(B) of this title if the Administrator determines that the certified applicator made a good faith effort to comply with 7 U.S.C. 136i-1(a), (b), and (c) and this part.