(a) Designation.— With the approval of the advisory council, the State Librarian shall designate up to 30 libraries throughout this Commonwealth as district library centers which may include:

1. (1) any local library;
2. (2) any State college library;
3. (3) the Pennsylvania State University Library; or
4. (4) any privately supported college or university library which agrees to serve as a district library center.

(b) Powers and duties.— A district library center may:

1. (1) Coordinate the services of local libraries within the district library center system by contracting with a municipality or board of trustees or managers of a local library to become part of the system.
2. (2) Provide direct library service without charge to all residents of the district.
3. (3) Provide supplementary library services to all local libraries within the district.
4. (4) Exchange or provide services with other district library centers or contract for the provision of library services with other district library centers.