It should be 'regulatory' if I'm not wrong. :)
The word regulation is an adjective as well as a noun (regulation football, regulation uniform, etc). Regulatory is another adjective form for the noun regulation.
adjustment, arrangement, classification, control
Regulation is a noun, as in a law or a rule. It is an adjective, as in 'regulation army equipment'
Depending on the use, the adjective could be disciplined (trained, or punished) or disciplinary (referring to the process of discipline). For the meaning "a style or way of doing things" there is no direct adjective.
According to Dictionary.com, it is Dietetic."adjective, Also, dietetical 1. pertaining to diet or to regulation of the use of food.2. prepared or suitable for special diets, especially those requiring a restricted sugar intake."- http://www.dictionary.com/browse/dietetic
Allosteric regulation and Reversaeble regulation :)
Auto-regulation
Regulation
Army Regulation 530-1 and Army Regulation 25-1
They reduced regulation.
War of the Regulation happened in 1770.
Percent Regulation is the regulation expressed as a percentage is a figure of merit used to specify the performance of a voltage regulator.