Max Legal Lift On Jeep Wrangler JK Before Requiring Engineering

[Tortoise]

Hi everyone,

Two months ago i purchased a 2008 Wrangler JK Unlimited Diesel with a damaged engine. I got it for $7000 and need to spend about $5000 to get it working, so well worth it in my opinion.
Upon completion of the repair i hope to get it ready for offroad use and then join the club. I have already done some research about the laws around lift kits and putting larger tyres on vehicles but can't actually find a definitive answer.

Does anyone know what size tyre and lift i can put on the car. It came with no lift and 31" all terrain tyres.
I was hoping to put 33" mud tyres and a 2" lift. Can i do this without getting the car engineered?

Regards
Curtis