Door-to-door salespersons need a Commercial Sales License from the City. They must also comply with Chapter 523 of the City Code. Here are a couple sections. You can call 645-4545 or 645-3111 to report violations.

Door-to-Door Solicitations, Columbus, OH

523.11 – Display of identification card.
All persons licensed under this chapter shall display their identification card in a prominent manner so it is visible to the public while conducting activities permitted by this chapter and, shall be subject to inspection, upon demand, by any license officer, law enforcement officer or by any person engaged in business with the peddler, solicitor or canvasser.

523.14 – Prohibited acts, hours of operation.
In addition to other provisions of this chapter, no peddler, solicitor or canvasser shall:
(a) Not operate between the hours of 8:00 p.m. and 9:00 a.m. when engaged in peddling, soliciting or canvassing door-to-door in areas zoned as residential.
(b) Enter a private residence under pretenses other than for peddling, soliciting or canvassing.
(c) Fail, or refuse to leave peacefully private property immediately after the owner, occupant, landowner’s agent or representative has requested to do so.
(d) Enter upon the land of a private residence or multi-unit property to peddle, solicit or canvass when the owner or occupant thereof has displayed a “no peddling”, “no soliciting” or “no canvassing” sign on such premises.
(e) Peddle, solicit or canvass on a street or within an area which has been closed by the city of Columbus for a “special event” without the written permission from the event organizers.
(f) Peddle, solicit or canvas in city parks, to the extent that these activities are regulated under Chapter 919.
(g) Sell, offer for sale, barter, or carry for sale or barter or expose for sale any merchandise or services on private property unless express written permission has been granted by the property owner or agent authorized to do so. Written permission shall be furnished upon application or at the request of any license officer or police officer.