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Permission to breed or house animals

Last Updated October 5, 2022

The permission system for animal breeding facilities based on the Act on Chemical Plants, etc. is for facilities that breed or house animals in residential areas.
It was enacted to prevent the occurrence of mosquitoes and flies and odor.
In Yokohama City, the following types of animals specified by a Cabinet Order are subject to the Kanagawa Prefecture Ordinance (Ordinance for Enforcement of the Law Concerning Kanagawa Prefecture Chemical Plants, etc.)
Permission is required in advance when bred or housed more than the specified number.

Type and number of animals subject to permission

Type and Number of Animals
CowHorse ※1Pig ※1SheepGoatDog ※2

Chicken ※3

Duck ※3

1 head1 head1 head4 animals4 animals

10 animals

100 birds

50 birds


※1 When breeding miniature hoses, ponies or mini pigs for pet purposes, permission is required for even one animal.
※2 When breeding 10 or more dogs, permission is required for puppies.
※3 For chickens and ducks, excluding chicks less than 30 days.

About facilities targeted for permission

In addition to business purposes such as livestock farmers, horse riding clubs, pet shops, etc., animals that are subject to permission even for pet purposes in ordinary households
Permission is required when breeding more than the number specified in the regulations.

About micro pigs

Small pigs called micro pigs that have been bred for pets are bred indoors with humans.
Permission may not be required if there is no risk of breeding and there is no risk of environmental health problems.
Please consult with your Health and Welfare Center Health Sanitation Division for your ward.

Regarding the structural equipment required to obtain permission

In order to obtain permission, it is necessary to meet the structural equipment standards specified in the regulations. For more information, please refer to
Please consult with Health and Welfare Center Health Sanitation Division in the ward where the facility you want to breed or house is located.

Contact information

For more information, please contact Health and Welfare Center Health Sanitation Division in the ward where the facility is located.

For inquiries to this page

Medical Care Bureau Health and Safety Department Health Sanitation Division

Phone: 045-671-2456

Phone: 045-671-2456

Fax: 045-641-6074

Email address: ir-seikatsueisei@city.yokohama.jp

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Page ID: 673-803-279

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