Introduce or expand transportation options that are available to the public and run on a scheduled timetable (e.g., buses, trains, ferries, rapid transit, etc.)
Prevent radon from entering occupied buildings and reduce existing indoor air radon levels via soil depressurization, home or room pressurization, heat recovery ventilation, etc.
Provide sterile injection equipment and often other treatment and referral services to people who inject drugs; also called needle or syringe exchange programs and needle syringe programs