Lang cookers n Catering in Pa?

Been cooking for the masses (on the side) in Pa. for some time now and sold my Old faithfull cooker about a month ago. I have a couple of local bars that want me to BBQ for them all summer long and need a bigger cooker. I have been looking at a Lang 84 with stainless steel racks because I love stick burners. The question I have is, can a Lang cooker/smoker be used for catering in Pa? Before I shell out over 5k I want to make sure. I see local bars all the time using homemade cookers so, I thought yes, but still want to be 100% sure. I was going to ask the dept. of health but thought I'd ask here first. Thanks

Thanks HolySmoke for the reply. That Lang 84 sure looks like a sweet lookin rig. My other cooker would only hold around 225 lbs. of pork but and that was pushing it. I need one that will hold at least 300 lbs. at a time. Plus, the double doors (one on each side) has to be great.

I've also been debating on to get it with the warmer or not. For the extra money will it really get used that much?