A decommissioned registered vehicle does not require road tax or a valid insurance.
[3] Examples include: APA (monkey), ARG (angry), DUM (stupid, bad), FAN (devil, damn), FEG (cowardly), FEL (error, wrong), FUL (ugly), GAY (homosexual), HOT (threat), LAT (lazy), NRP (Nordiska Rikspartiet), OND (evil, cruel), SEX, SUP (snaps), TOA (toilet), UFO, USA, XXL (extra extra large) and many others.
MLB (no meaning in Swedish) is reserved for examples, movies, ads and similar, where a real plate connected to a car which might be sold is not desired.
English language was not considered when making the list, so for example WTF exists on plates.
[3] The Swedish Transport Agency has made this list, which is larger than those in most other countries, to avoid requests to replace issued plate numbers once they are deemed unacceptable, which would cause administrative problems.
There is also a self-adhesive plastic 'plate' for use on snowmobiles, ATV's and similar, where the design of the vehicle can make it awkward to fit a real plate.
Motorcycle owners have often changed plates since it is often hard to find a place for the oval "S"-sticker otherwise needed abroad.
This sticker was sent to the owner when the road tax and the liability insurance had been paid and the vehicle had been approved in the inspection.
Since 1 January 2010, the tax sticker was abolished in Sweden, and newer plates have no room for it.
The above-mentioned limitation on allowed letters (I, Q, V, Å, Ä, Ö) does not apply to personal plates.
In 2018, authorities in Romania confiscated a Swedish plate that reads "MUIEPSD", which means "fuck the PSD (Social Democratic Party)", Romania's then-ruling party, in Romanian, despite Swedish embassy in Bucharest issued a Facebook post that clarifies all-letter Swedish personalised plates are valid throughout the European Union, including Romania.
The dealers have reported their car not to be driven, meaning they don't have to pay road tax.
The plate shows that the owner has a special insurance that covers test drives.
Thus if it isn't used as a taxi anymore, or if the car or the Taximeter fails inspection, the normal plates are put back on and the yellow ones are confiscated.
Until 1 April 2017, a smaller T indicating "taxi" was printed in the right hand corner (unless it had personal plates, in which case the T was omitted).
Like the standard plates, it has three letters and three digits, but with an expiry day and month to the left and year to the right.
The licences usually consist of four to six digits and may be used for all kinds of vehicles, from ordinary automobiles to tanks.
The register and issuing of plates is done by the Swedish Defence Materiel Administration thus completely separate from the civilian counterpart.
The typeface used was not consistent as the vehicle owner bought either a plate or a kit from various dealers, such as petrol stations.
Opposite to many other countries, there were no special codes for police, post or other national services apart from the military.
In January 1994 a new plate was introduced that was made from a solid piece of plastic, with a customised Helvetica typeface.