Section 6. Preservation of local governing authority.
Notwithstanding any other law, nothing in this act shall be construed to:
(1) Limit or preempt the scope of a municipality's review of zoning, land use or permit applications for the siting of wireless support structures.
(2) Prevent a municipality from exercising its zoning power, as provided for under the Pennsylvania Municipalities Planning Code, municipal charter, municipal enabling act or other zoning or land use ordinance or regulation.
(3) Prevent a municipality from regulating any modification or collocation that substantially changes an existing wireless support structure that is inconsistent with this act.