About the specified update (2024.10.01)

From October 1, 2019, the "Law to Amend Part of the Water Supply Law" was enforced, and a renewal system was introduced in the designated water supply equipment construction company system.
The validity period is 5 years from the conventional indefinite period, and if the specified renewal is not made, it will expire.

The expiration date of the designation of the company of the designated number 101 to 1237 is September 29, 2025.
If the above-mentioned designated water supply equipment construction company does not perform the renewal procedure by the expiration date, the designated effect will be lost.
Water supply equipment construction in Yokohama city will not be possible.

After confirming designated number, please file in Yokohama-shi electronic application report system (outside site) by September 29, 2025.

As for the details, please see Yokohama-shi (yokohama.lg.jp) about designated update.

As the expiration date of designation of company of designated number 5101-5185 is printed in the middle lower part of Yokohama-shi designation water supply equipment construction company designation book (there is sample below), You have you confirm, and please perform update procedure in Yokohama-shi electronic application report system (outside site).
If you do not renew by the expiration date, you will lose the designated effect and you will not be able to construct water supply equipment construction in Yokohama City.

Sample Designation Document (PDF: 199KB)

As for the details, please see Yokohama-shi (yokohama.lg.jp) about designated update.