About certification pertaining to the safety of buildings against earthquakes (Anshin mark system)

Last updated on January 27, 2025.

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In Yokohama City, we certify "safety of buildings against earthquakes" based on Article 22, Paragraph 2 of the Act on Promotion of Seismic Retrofitting of Buildings as the "Anshin Mark System".
Buildings that meet the seismic standards can display the "Anshin Mark" indicating it.
Newly built buildings are also eligible, so please use them.

Certificates in the "Certification System for Building Safety against Earthquakes"
Certificate
(A4 size)

Anshin mark in the “Certification System for Building Safety against Earthquakes” "Anshin mark"
(75 x 75 mm and 145 x 145 mm)

Introduction of "Anshin Mark" Granting Buildings

List of buildings certified by "Anshin Mark"

Overview of the System

Anshin mark system (leaflet) (PDF: 679KB)

Subject to certification

All buildings, including wooden and non-wooden buildings

Benefits of certification

A certificate and a "Anshin mark" sticker will be issued to the certified building.
By posting in a position that is easily visible, such as the entrance of a building, it is possible to promote earthquake resistance.
The certification mark can be displayed on advertisements, etc.

How to apply

First of all, please consult us in advance. After confirming the site, we will guide you through the documents required for certification.

After that, please submit the certification application form with required documents to the Building Disaster Prevention Section.

In addition, we would like person performing earthquake-resistant repair work to have you consult beforehand before construction.

Procedure Flow

An earthquake mark certification flow

Prior consultation slip (Please submit a prior consultation slip before applying for certification.)

Prior consultation slip (word: 24KB)

Style pertaining to certification application

For conformity with earthquake-resistant regulations (buildings with new earthquake-resistant standards * 1)
- Twelfth style (word: 21KB)
For conformity with seismic diagnosis standards (formerly seismic standards * 2 buildings)
- No. 13 style (word: 22KB)
- No. 6 style (word: 13KB) (Attachment is required for wooden)
- Seismic diagnosis result report (word: 25KB)

Style pertaining to construction inspection

Person performing earthquake-resistant repair work from now on, we would like you to have you receive middle inspection, completion inspection of city in principle.

Fees

Free of charge

System outlines, related rules, etc.

Reference: Subsidy system for seismic retrofitting of buildings

Support for earthquake resistance of houses, condominiums, and buildings

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