Abstract: A Vehicle Exhaust Filtration System and Method is disclosed. Also disclosed is a system and method that reduces the airborne contaminants leaving the exhaust pipe of any internal combustion engine to which the system is attached. Furthermore, the method and system involves the use of recyclable cartridges that can be exchanged on a planned maintenance program. Still further, the disclosed system and method prohibits engines failing to have acceptably clean filter/converters from being started. It is another aspect of the present invention that the method and system provide an alert to the user, and potentially to external individuals, that the change out deadline is approaching.