On review of the study required under § 2–1207 of this subtitle, and the reports required under § 2–1211 of this subtitle, the General Assembly: May act to maintain, revise, or eliminate the greenhouse gas emissions reductions required under §§ 2–1204.1 and 2–1204.2 of this subtitle; and Shall consider whether to continue the special manufacturing provisions in § 2–1205(f)(1) of this subtitle.