A batch ID is made up of the 4 digit company ID, 5 digit facility ID, 2 digit reporting year, and the 6 digit batch number (e.g., CCCC-FFFFF-YY-BBBBBB).(7/1/94)
This question and answer was originally posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (PDF)(333 pp, 18.17 MB, EPA420-R-03-009, July 2003, About PDF)