I want to move my existing low flow toilet approx 3 feet to the right. It will be in the same wall and face the same direction. The existing plumbing comes straight up the wall behind the existing toilet from the lower level. Can you please advise me as to what is required to meet Colorado building code to move this?

Colorado code will allow you to use two elbows to relocate the toilet the 3 feet without any restrictions.

Mark