If it is made under licence by Hersey yes no if it is imported from England. The same with Nestle products; I found when I visited the States/Canada in 1997 that in Canada you could get the "real" kitkats but not in the States. In the States they were made under licence and tasted much less creamy.
British chocolate has a more creamy taste, if you read the Cadbury's history you will see this ocurred because Cadbury's were the first to introduce liquid milk into their chocolate rather than powdered milk.
http://www.cadburydairymilk.co.uk/EN/CDM100/history/