Utah has never used county codes on license plates, but
county code stickers were issued from 1985 to 2002.
UTAH COUNTY STICKER CODES 1985-2002
BV Beaver RN Iron SE Sevier
BE Box Elder JU Juab SU Summit
CA Cache KA Kane TE Tooele
CC Carbon MD Millard UN Uintah
DG Daggett MN Morgan UT Utah
DA Davis PT Piute WA Wasatch
DU Duchesne RH Rich WN Washington
EM Emery SL Salt Lake WE Wayne
GA Garfield SJ San Juan WB Weber
GR Grand SP Sanpete