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Straßenverkehrsordnung f =
gen.	road traffic regulations (StVO); Highway Code (StVO); road traffic regulations
construct.	road traffic regulation
econ.	highway code; rules of the road
emerg.care	traffic regulations
tech.	Road Traffic Act

Straßenverkehrsordnung: 3 phrases in 3 subjects

American usage, not spelling	1
British usage, not spelling	1
Commerce	1