Delaware License Plates
Delaware has a historic tradition of permitting special number requests. Tracking normal highs is therefore a best-effort since there are almost always special request outlier numbers that far exceed any normal type high.
Delaware plates marked "APPORTIONED" along the top signify a truck or bus operating in more than one jurisdiction as part of the International Registration Plan (IRP). Delaware started issuing apportioned plates in 1995 with C and C/L series numbers. Most newer issues are in the C/L 1x series along with the occasional old number remake. A trailer version with T prefix was issued only until 2001.
On Sept. 18, 2025, Governor Matt Meyer signed House Bill 250 to introduce a new made-to-order license plate that plate celebrates both of Delaware's 1776 independence movements. Design proclaims "250 YEARS OF INDEPENDENCE" along top.
https://delaware250.org/resources/delaware-250-special-tag/
Many special plate types do not have a true high because the number on them may be chosen by the registrant. Confirmed examples:
AL - American Legion
CA - Caravel Academy
DSU - Delaware State Univ
DU - Ducks Unlimited
CU - Credit Union
LC - Lion's Club
ND - Notre Dame
SA - Salesianum Alumni
UD - Univ of Delaware