(a) Ordinances.--This chapter shall apply to the enforcement of local ordinances existing on the effective date of this chapter and to the enactment or enforcement of a local ordinance enacted on or after the effective date of this chapter.
(b) Local governments.--A local government that has enacted a local ordinance relating to oil and gas operations prior to the effective date of this chapter shall have 120 days from the effective date of this chapter to review and amend an ordinance in order to comply with this chapter.