regulation

[1]	adjustment , ordinance , modification , modulation , control , balance , balancing , setting , fixing , organization , maintenance
[2]	rule , rule , ruling , law , code , by-law/bye-law , edict , order , ordinance , statute , decree , directive , dictate
[3]	edict , ukase , pronouncement , fiat , (papal) bull , proclamation
[4]	regularization , regularisation
[5]	regulating

adj.

[1]	standard , accepted , official , required , prescribed , mandatory
[2]	usual , normal , ordinary , customary , typical