A system and methods for more quickly, accurately, and efficiently collecting, tracking, and transmitting sample collection data and information. Specifically, this involves the generation of printed labels in the field comprising labels with unique identifiers corresponding to specific sample collection data and information. The labels are printed at the location of the sampling and are applied on the outside of sample collection devices and at the location of sample collection. Each unique identifier is associated with a unique record number in the Electronic Chain of Custody (ECOC), corresponding to a specific sample.