The department shall:
(1) enforce federal and state laws on rail fixed guideway public transportation safety;
(2) review, revise, approve, oversee, and enforce the public transportation agency safety plan required under 49 U.S.C. Section 5329(d), including the implementation by a rail fixed guideway public transportation system of the system's plan;
(3) investigate and enforce the safety of rail fixed guideway public transportation systems; and
(4) coordinate all enforcement responsibilities with other governmental entities as needed.