The Public Utilities Regulatory Authority shall adopt regulations, in accordance with the provisions of chapter 54, to the extent necessary to ensure compliance with this chapter. Such regulations shall be designed to protect the public safety and shall prescribe (1) the duties and responsibilities of persons, public agencies and public utilities with respect to excavating, discharging explosives or demolition in proximity to any public utility underground facility, and (2) a schedule establishing the amounts which may be assessed as civil penalties for violations of this chapter, as provided in § 16-356, based upon the nature and severity of the violation and the number of past violations, but not to exceed the maximum penalty contained in said section. The authority shall revise the regulations adopted pursuant to this section regarding a graduated schedule of civil penalties assessed pursuant to § 16-356 and the criteria by which the authority determines the amount of such civil penalties.