Section 22.03 - Traffic in Building Baggage Concourses at an Airport(1) No person shall operate a motor vehicle of any kind in the baggage concourses located in the terminal buildings at a speed of more than six mph.(2) Operators shall adhere to all signs governing operations in Terminal Building baggage concourses.(3) Only those motorized vehicles authorized in accordance with 740 CMR 22.00 shall be permitted in the baggage concourses.(4) The excessive or unnecessary use of horns in the baggage rooms or baggage concourses is prohibited.(5) Due to the danger of carbon monoxide fumes, no vehicle shall be left unattended with the motor running in the Terminal Building.(6) Vehicles smoking excessively shall be restricted from the aerodrome.(7) No vehicle shall be allowed to park inside any building unless the area has been so designated as a vehicle garage or repair area.