Break a law or rule (10)
(Other definitions for transgress that I've seen before include "Cause offence" , "Go beyond (legal) limits" , "Overstep, exceed" , "Commit a sin" , "misbehave" .)
(Other definitions for infringe that I've seen before include "Violate" , "Contravene" , "Refining so as to act against rule or agreement" , "Break the rules" , "Break (rule)" .)