REGISTRATION YEAR
1909: 2/1 to 12/31
1910-35: 1/1 to 12/31 (1935 extended to 3/31/1936)
1936-65: 4/1 to 3/31 (1965 shortened to 2/28/1966)
1966-77: 3/1 to 2/28
Monthly Staggered Registration began 9/1/1977, expire "AUG 78",
for new registrations, and 3/1/1978, expire "JUL 78" to "JUN 79",
assigned randomly by computer, for renewals. New registrations
since assigned previous month of next year.
Optional Two-Year Registration began 7/1/1995, expire "JUL 97".
