elements meant: first letter: code of voivodeship, second letter: code of powiat, digits: code of vehicle. Codes of voivodeships: A – Białystok Voivodeship B – Bydgoszcz Voivodeship C – Kielce Voivodeship E – Koszalin Voivodeship F – Łódź Voivodeship G – Gdańsk Voivodeship H – Opole Voivodeship I – city of Łódź K – Kraków Voivodeship L – Lublin Voivodeship M – Szczecin Voivodeship O – Olsztyn Voivodeship P – Poznań Voivodeship R – Rzeszów Voivodeship S – Katowice Voivodeship T – Warsaw Voivodeship W – capital city of Warsaw X – Wrocław Voivodeship Z – Zielona Góra Voivodeship Codes of special forces: Y – Citizen's Militia D – army (cars) U – army (other vehicles) N – Border Guard 1976–2000 Plates from the 1976–2000 series are still valid. They have white letters on black background. The coding used was three letters and four digits (XYZ 1234) or three letters, three digits and one letter (XYZ 123A), although at the beginning the configuration with a letter in the end was used for public cars only. The following coding was used for the 49 regions of the country: Biała Podlaska: BP, BA, BS Białystok: BK, BT, BI Bielsko-Biała: BB, BL, BO Bydgoszcz: BY, BG, BD, BC Chełm: CH, CM, CU Ciechanów: CI, CN, CA Częstochowa: CZ, CE, CO Elbląg: EL, EG, EB Gdańsk: GD, GK, GA, GN Gorzów Wlkp.: GO, GW, GR Jelenia Góra: JG, JE, JA Kalisz: KL, KZ, KP Katowice: KA, KT, KB, KC, KD, KX Kielce: KI, KE, KJ Konin: KN, KM, KF Koszalin: KO, KG, KY Kraków (Cracow): KR, KK, KW, KV Krosno: KS, KU, KH Legnica: LG, LC, LI Leszno: LE, LS, LN Lublin: LU, LL, LB Łomża: LO, LM, LA Łódź: LD, LZ, LF, LW Nowy Sącz: NS, NO, NA Olsztyn: OL, ON, OT Opole: OP, OE, OD Ostrołęka: OS, OK, OR Piła: PI, PA, PY Piotrków Tryb.: PT, PK, PU Płock: PL, PC, PB Poznań: PO, PN, PZ, PW Przemyśl: PR, PM, PE Radom: RA, RO, RD Rzeszów: RZ, RE, RW Siedlce: SE, SD, ST Sieradz: SI, SA, SB Skierniewice: SK, SN, SF Słupsk: SL, SP, SG Suwałki: SU, SW, SO Szczecin: SZ, SC, SM Tarnobrzeg: TG, TB, TE Tarnów: TA, TN, TW Toruń: TO, TU, TY Wałbrzych: WB, WY, WH Warsaw: WA, WS, WI, WU, WG, WF, WX, WZ, WM, WT, WP, WV Włocławek: WL, WK, WE Wrocław: WR, WO, WC, WW Zamość: