Data Code for Calendar Date for Machine-to-Machine Data Interchange* (Proposed USA Standard) CACM April, 1968 USA Standard, data code, calendar date, machine-to-machine data interchange, recording calendar date, data group identifier 2.0 2.11 2.19 2.3 2.40 2.43 2.49 3.50 3.52 3.53 3.55 3.56 3.59 3.70 3.71 3.73 3.74, 3.79, 3.81, 4.1, 4.9 CA680413 JB February 23, 1978 10:18 AM 1757 5 1757 1757 5 1757 1757 5 1757