(a) The board of supervisors shall provide for the recording of minutes of its proceedings and other books it may find necessary in the performance of its duties. The records shall be made available to the board of auditors during the annual audit. Unless the custodian of the records agrees otherwise, the records shall be audited or inspected at the place where they are normally maintained. Supervisors who leave office shall deliver all township records in their possession to their successors or to the township secretary.

(b) All township records required to be recorded or transcribed are valid if typewritten, printed, photostated or microfilmed, and, where recording in a specified book of record is required, including minutes of the proceedings of the board of supervisors, the records may be recorded or transcribed in a mechanical post binder book capable of being permanently sealed, with consecutively numbered pages with a security code printed thereon and a permanent locking device with the township seal being impressed upon each page, or bound book with pages being consecutively numbered by transcribing directly upon the pages of the book of record, or may be attached to the book of record by stapling or by glue or any other adhesive substance or material, and all records previously recorded or transcribed in any manner authorized by this section are validated. When any record is recorded or transcribed by attaching the record or a copy of it to the book of record, the township seal shall be impressed upon each page to which the record is attached, each impression covering both a portion of the attached record and a portion of the page of the book of record to which the record is attached.

(c) Original or certified copies of ordinances may also be stored in a locking or mechanical post binder book, capable of being permanently sealed, without being fastened onto pages in the binder.