Secondary Document [Department of Transportation] Law and Legal Definition
According to 49 CFR 1177.1 [Title 49 – Transportation; Subtitle B Other Regulations Relating to Transportation; Chapter X Surface Transportation Board, Department of Transportation; Subchapter B Rules of Practice; Part 1177 Recordation of Documents], secondary document is “any assignment of rights or interest, supplement, or amendment to any primary or other secondary document. These include releases, discharges, or satisfactions, either total or partial.”