Some RPO codes you might find on a European export. On sticker affixed to inside of trunk lid.
JE1 Brake System Europe (export)
LG4 305 VIN H
NC3 Tailpipe Modifications (export)
NM1 Switzerland/Sweden Emissions Provisions (Export)
P41 Tire (Export)
T79 Lamps, RR Fog (Export)
T84 Headlamp RH Rule of Road (Export)
T85 Headlamp LH Rule of Road (Export)
T89 Lamps, Sig & Mkg (Export)
T90 Lamps, Sig & Mkg (Export)
UK2 Lever, Dir SIg (Export)
UL2 Radio Frequency European
U03 Horn, Noise Reg. (Export)
U18 Speedo, I/P (Export)
VD1 European Modifications (Export)
VJ5 Mounting Lic Plate (Export)
VL4 Plate, Mounting Lic (Export)
VL5Plate RR Mounting Lic (Export)
VL6 Plate, Front mounting Lic (Export)
V39 Control I.D. International Symbols (Export)
V70 Hooks, Towing (Export)
V97 Vehicle Preparation Export
ZK3 Package, Spl Interior (Export)
There are also RPOs for Canada, Japan, Venezuela and Gulf States specifically.
These are European specific or have no indication of a specific locale.