u/Equal-Ad1016

I was told to have my tortoise inside for about 3 years before I let him live outside. The thing is that he’s getting way too big for his indoor home. He’s a little over a year old. Can I transition him outside or should I make adjustments to keep having him in doors? I don’t want to just boot him outside since summer is coming and I live in AZ. But I would like to know how or when to start transitioning him to get used to living outside more. Thanks