New York Laws
Article 4-B - Provisions Relating to Water
89-P - Powers of the Department.

ยง 89-p. Powers of the department. The department shall, with respect
to out of state water-works corporations which are affiliated with
in-state water-works corporations and which provide water to such
in-state corporations for eventual retail to New York consumers, keep
apprised of, attend and monitor, and, where possible, formally intervene
in rate cases brought by such out of state corporations before the
appropriate regulatory agency of such other state. The commission shall
consider and utilize information secured therefrom in determining
whether rate increases sought by such affiliated in-state corporations
are in the public interest.