I have been a patient at your facility, or am the patient's authorized representative. I understand that the facility has legally protected.Date: Name (Print):. Signature: Partnership, Corporation or Similar Entity: I designate. Anyone metal detecting is required to have an authorization letter from the Allegheny County Parks. Dept. With them at all times while engaged in this activity. Please check your profile in Self Service to confirm your correct class and letter. The date and time in the schedule are the earliest that you may register. Agency Authorization. The following Cremation Authorization Request form will appear. 3.