Anyone selling products and services door-to-door must be licensed with the City. There are some exceptions to this (newspaper delivery as well as food delivery services). More information can be found in City Code.
Soliciting without a license is a misdemeanor crime and is punishable up to 90 days or $1,000 or both.
Individuals traveling door-to-door should be wearing their City-issued badge. The badge must be worn at all times. Solicitors must also carry their official City license.