Potential problems I have seen with the mobile cooking, AKA roach coaches
1. Lack of maintanence
2. Lack of clearances from exhaust hood to combustables
3. Hoods not liqued tight or cleaned.
4. Propane hoses w/o gas shut offs and hoses going through walls w/o abrasion protection
5. Several propane tanks laying around, some on their side so the pop-off valve is ineffective.
6. Other units being so close that if one coach catches fire, the one next to it is exposed to fire
7. Lack of access for responding fire trucks
Oregon FM was looking at this problem a couple of years ago, I do not know of any progress made. One problem here is Oregon is the org responsible for the coaches is only concerned if someone wants to build a couple of hundred. The agency that regulates mobile units says the rules are the responsiblility of the Building Codes agency. Building Codes say those are mobile units and they are not responsible if wheels are used. The health Department says they are responsible for inspecting sanitation, not fire. The FM is not responsible for exhaust systems, just fire systems. Those things make me nervous as there is no accountabilty by any State Agency for fire. Some counties in Western Oregon have some enforcement for fire extingushers and suppression systems.