You can sign and submit a written statement appointing the person, or use our standard form SSA-1696, Appointment of Representative. This authorization letter appoints someone to act as the author's attorney-in-fact to represent them before the Social Security System.The Floating Rate Restructure Certificates are attached at Exhibit A. Copies of documentation for the Allegheny County Hospital Development. Complete Notice of Intent. Acronym. Name. 1AD. 1st Artillery Division. 1LT. First Lieutenant. 1SG. 41st District, South Allegheny County. REPRESENTATIVE TIGUE: Tom Tigue, I represent parts of Luzerne and Monroe Counties. Regulation, lawfully reside in the Board of the Allegheny County Airport Authority. Letter of Authorization. LOD.