Chapter 14. Data Link CommunicationsSection 1. Terminal Procedures for Issuing Automated Clearances14-1-1. PRE‐DEPARTURE CLEARANCE (PDC)14-1-2. CONTROLLER PILOT DATA LINK COMMUNICATIONS (CPDLC) – DEPARTURE CLEARANCE (DCL)14-1-3. DEPARTURE CLEARANCE (DCL) APPLICATION (PDC/CPDLC) SELECTABLE FIELDSSection 2. En Route Controller Pilot Data Link Communications (CPDLC) - Domestic14-2-1. GENERAL14-2-2. ABNORMAL SITUATIONS14-2-3. SYSTEM SITUATIONS14-2-4. SPECIFIC UPLINKSSection 3. Advanced Technologies and Oceanic Procedures (ATOP) - Oceanic Controller Pilot Data Link Communications (CPDLC)14-3-1. MEANS OF COMMUNICATION14-3-2. TRANSFER OF COMMUNICATIONS TO THE NEXT FACILITY14-3-3. ABNORMAL CONDITIONS