(a) This Part shall be known and may be cited as the "Public Health Authorities Act".
(b) The purpose of this Part is to provide an alternative method for counties to provide public health services. This Part shall not be regarded as repealing any powers now existing under any other law, either general, special, or local.
(c) It is the policy of the General Assembly that Public Health Authorities should have adequate authority to exercise the powers, rights, duties, functions, privileges, and immunities conferred upon them by law.