16 Pa. Stat. § 5179
Upon receipt of an application for a plant license, the county commissioners shall cause such investigation as it shall deem necessary to be made of the location and premises where the garbage disposal plant is desired to be constructed, kept, maintained or conducted, and shall make a study of the plans and specifications pertaining to the proposed construction of any garbage disposal plant. The county commissioners shall, when satisfied that the place to be used as a garbage disposal plant is a suitable place for such purpose and is properly equipped therefor and when all the requirements of this act and the rules and regulations of the county commissioners shall be complied with, issue a plant license to the applicant, upon the payment of a license fee of one hundred dollars ($100), except when the applicant is a municipality, which shall be paid into the county treasury. A plant license issued to a municipality shall be without the payment of a fee.
All plant licenses issued by the county commissioners under this act shall expire on the first day of June next following the day on which issued, unless sooner revoked or suspended, shall be on a form prescribed by the county commissioners, shall not be transferable, shall be issued only for the premises named in the application, shall be posted in a conspicuous place on the applicant's premises, and may be renewed from year to year upon application and payment of license fee as in the procurement of an original license. Applications for renewal of plant licenses shall be mailed to license holders by the county commissioners at least thirty days before the expiration date of such licenses.
The county commissioners may refuse to grant a plant license or may suspend or revoke a license if the applicant or licensee does not meet or conform to the requirements of this act and the rules and regulations of the county commissioners authorized by this act. Before the county commissioners shall refuse to grant such a license or shall suspend or revoke a license, they shall afford the applicant or licensee an opportunity to be heard, and shall give at least five days' written notice of the hearing to the applicant or licensee by registered letter sent to the address set forth in the application.
16 P.S. § 5179