47 Pa. Stat. § 7-712
Upon learning of any violation of this act or regulations of the board promulgated thereunder, or any violation of any laws of this Commonwealth or of the United States of America by the permittee, his officers, servants, agents or employes, or upon any other sufficient cause shown, the board may cite such permittee to appear before it or a member thereof not less than ten or more than fifteen days from the date of sending such permittee, by registered mail, a notice addressed to him at the address set forth in the application for permit, to show cause why such permit should not be suspended or revoked. When such notice is duly addressed and deposited in the post office, it shall be deemed due and sufficient notice. Hearings on such citations shall be held in the same manner as provided herein for hearing on application for permit. Upon such hearing, if satisfied that any such violation has occurred, or for other sufficient cause, the board shall immediately suspend or revoke the permit, notifying the permittee thereof by registered letter addressed to the address set forth in the application for permit. Any permittee whose permit is revoked shall be ineligible to have a permit under this act until the expiration of three years from the date such permit was revoked. In all such cases, the board shall file of record at least a brief statement in the form of an opinion of the reasons for the ruling or order.
47 P.S. § 7-712