to give at least 30 day advanced notice. >>> orioles and ravens games are about to become completely smoke-free. while some are supporting the stadium's smokeout. as christie ileto explains, others are fired up. >> reporter: if you're caught smoking at m&t bank stadium or inside camden yards, as the umpire says -- >> he is out. >> reporter: they will no longerilitissing up -- longer allow night lighting up of cigarettes or cigars. >> i don't smoke. i don't want to inhale secondhand smoke. >> some support it. others like rob dicks say -- >> i'll be watching from home. >> reporter: teams are work oag a plan that will allow smokers to leave the stadium to smoke then reerntsz. but some smokers already have a plan b. >> i think i can probably handle going for a few hours. and if it's too much, i can just go outside the game. >> reporter: before the ban, there were certain parts of the stadium where you could smoke, like along the ramp. >> over the years, we received