Euro 6 engines only allowed in Greater Manchester from next May

[Mrboo]

RE: Euro 6 engines only allowed in Greater Manchester from next May
Well Historic (classic) vehicles under road tax rules are built before 1 January 1981.

Your vehicle will not be exempt from vehicle tax if:

it’s used for hire or reward (for example, it’s used as a taxi for paying customers)
it’s used commercially for a trade or business

So same rules you would think.