Michigan Compiled Laws, Chapter 460. Public Utilities § 460.6g

(a) “Attaching party” means any person, firm, corporation, partnership, or cooperatively organized association, other than a utility or a municipality, which seeks to construct attachments upon, along, under, or across public ways or private rights of way.

(b) “Attachment” means any wire, cable, facility, or apparatus for the transmission of writing, signs, signals, pictures, sounds, or other forms of intelligence or for the transmission of electricity for light, heat, or power, installed by an attaching party upon any pole or in any duct or conduit owned or controlled, in whole or in part, by 1 or more utilities.

(c) “Commission” means the Michigan public service commission created in section 1.  1

(d) “Utility” means any public utility subject to the regulation and control of the commission that owns or controls, or shares ownership or control of poles, ducts, or conduits used or useful, in whole or in part, for supporting or enclosing wires, cables, or other facilities or apparatus for the transmission of writing, signs, signals, pictures, sounds, or other forms of intelligence, or for the transmission of electricity for light, heat, or power.