Wet vent question

[Nickyplumber1982]

Hi I am new to the forum. I beleive I am posting in the correct forum. This is a great forum and appreciate everyonea responses. Many times as a non member I have referred to this site for help. Anyway I have a rough in question. In the pic attached I want to know if I can use the vent off my 3" toilet as a wet vent for my tub. It is within range of the trap arm distance which I beleive is 5 ft.so basically I'm asking if I need to run a separate vent for the tub or if I can use the 2" vent off the 3" main from the toilet as a wet vent for the tub.
Thanks!!

 

[Nickyplumber1982]

By the way the job is located in ct. Fairfield county to be specific