Attention, owners of Airbnb, VRBO and Home-to-Go listings. If you run one of the 400 unlicensed short-term rental properties in St. Paul, your time may be running out.

By the end of the day Friday, officials in the city’s Department of Safety and Inspections expect to have mailed out warning notices to the owners of 400 short-term rental listings that have yet to complete the city’s licensing process.

At least 78 properties have gone through licensing since new rules took effect Dec. 2. Another 37 applications are pending.

As for everyone else, “they will have 30 days to gain compliance,” said DSI spokesman Robert Humphrey. “After that time, DSI will look at enforcement action. Violation of this ordinance is a misdemeanor or a petty misdemeanor offense.”

The St. Paul City Council last year approved a new licensing process for short-term rentals that includes home inspections, insurance requirements and other steps, such as having to provide fire certificate of occupancy paperwork unless the building is an owner-occupied duplex or single-family home. Rules vary according to nine property types.

For instance, in a building with more than four apartments or condo units, no more than half the units can be converted into short-term rentals, up to a maximum of four units.