Message Line Identifiers Record Identifier Transfer (TRN) - Made edits to Note 1.
Record Identifier Departure (DEP) - Made edits in description of data elements "Liftoff Date" and "Liftoff Time". Made edits to Note 1.
Record Identifier Text (TXT) - Made edits to Note 2.
Appendix A Made edits in Error Codes: 000, 015, 017, 020, 021, 026, 027, 037, 038, 040, 043, 044, 045, 046, 047, 051, 061 and 171. Added new code 197.
Made numerous edits to the CBP Domestic Airports section.