违规的英语短语怎么说

"Violation" is the most common word used to describe an act that goes against a rule or law. Some other phrases you could use to describe a violation include:
Breaking the rules
Going against the regulations
Transgressing
Infringing
Contravening
For example:
The company was fined for a violation of environmental regulations.
The driver was cited for a violation of traffic laws.
The student was punished for a violation of the school's code of conduct.