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Milwaukee, WI Animal Ordinances: Microchipping (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Applies to
Every dog and cat in the city
Registration
Nationally recognized pet recovery database
Transfer reporting
Within 30 days of transfer
Visitor exception
Stays of 90 days or fewer
New resident grace period
90 days to comply

Summary

Milwaukee requires every dog and cat kept in the city to be microchipped and registered with a nationally recognized pet recovery database, with narrow exceptions for short-term visitors and new residents.

MICROCHIPPING. a. Every dog and

every cat kept in the city shall be microchipped

and registered with a nationally recognized pet

recovery database.

b. Transfer of ownership of a

microchipped animal shall be reported to a

national pet microchip registry within 30 days of

the transfer date. The new owner shall ensure that

the microchip registration is updated to reflect

current contact information.

c. The requirements of this subsection

do not apply when either of the following conditions

exist:

c-1.

The dog or cat is temporarily visiting

the city for a period not exceeding 90 consecutive

days.

c-2.

The dog or cat is owned by an

individual who has established residency in the city

within the past 90 days, provided that

microchipping is completed and registered within

that period.

Source: Milwaukee Code of OrdinancesView official code

Full Breakdown

Under the dog and cat licensing section of the animal code, every dog and every cat kept in the city must carry a microchip registered to a nationally recognized pet recovery database. When a microchipped animal changes hands, the transfer must be reported to a national pet microchip registry within 30 days, and the new owner is responsible for updating the registration with current contact information. The requirement does not apply to an animal temporarily visiting the city for 90 consecutive days or fewer, or to an animal owned by someone who has lived in the city for 90 days or less, provided microchipping and registration are completed within that window.

Violations & Fines

Violation is a municipal offense; s. 78-17-6 microchipping is listed among the ch. 78 provisions penalized under the ch. 61 forfeiture schedule, enforced by citation from the domestic animal control commission or police.

Frequently Asked Questions

Does every pet need a microchip in Milwaukee?
Yes. Milwaukee Code § 78-17-6 requires every dog and cat kept in the city to be microchipped and registered with a nationally recognized pet recovery database, with limited exceptions for short-term visitors and new residents.
What do I have to do when I transfer a microchipped pet to a new owner?
The transfer must be reported to a national pet microchip registry within 30 days, and the new owner must update the registration with current contact information.

Sources & Official References

Other rules in Milwaukee

All Milwaukee rules

Compare Milwaukee to another location·View the Wisconsin animal ordinances overview

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