The Oxford Thesaurus An A-Z Dictionary of Synonyms - regulationn.

1) adjustment, modification, modulation, control, balance, balancing, setting, fixing, organization, maintenance: The regulation of the temperature is accomplished by the thermostat. 2 rule, ruling, law, code, by-law or bye-law, edict, order, ordinance, statute, decree, directive, dictate: There are strict regulations governing the sale, disposal, and movement of radioactive materials. 3) edict, ukase, pronouncement, fiat, (papal) bull, proclamation: A regulation was issued against meetings of more than five people. --adj. 4) standard, accepted, official, required, prescribed, mandatory: The soldier was not wearing a regulation uniform. 5) usual, normal, ordinary, customary, typical: If you use anything but regulation accessories, the guarantee will be null and void.