Marron’s Air Quality program is working on a large-scale pilot of smart emission monitoring for vehicles. Currently, 60 million vehicles owners in many American jurisdictions are required to receive an emission inspection once every one or two years. The process is problematic from an environmental health perspective since a substantial amount of air pollution comes from vehicles that are between annual emissions checks but already out of emissions compliance. Smart emissions monitoring reduces the inconvenience of annual inspections for owners of vehicles that are in compliance by enabling a user driven inspection using mobile technology. More importantly, by creating a user driven platform for emissions inspections, jurisdictions will now be able to nudge vehicles owners to repair their vehicles as soon as a violation is detected rather than waiting until an annual inspection. The end result is an improvement in air quality by maintaining a higher share of in-compliance vehicles on the road.