💉 Immunization Act Rules Amendment: Public Comment Open Until Sep 27

❓ What is happening?

Japan's Ministry of Health, Labour and Welfare (MHLW) has opened a public comment procedure on a draft ministerial ordinance that partially amends the Enforcement Regulations of the Immunization Act. The draft was published on August 27, 2026, and comments have been accepted since 0:00 that day. The closing time is 0:00 on September 27, 2026 — because the cut-off is stated as "0:00," the last practical day to submit is September 26. The case number is 495260162, the e-Gov category is "Welfare (厚生)," and the enabling provision is Article 12, Paragraph 1 of the Immunization Act (Act No. 68 of 1948). The procedure is conducted under the Administrative Procedure Act; no reason for a shortened period is stated, meaning roughly the full one-month window applies. Enforcement regulations are ministerial ordinances in which the Minister sets out the details within the framework fixed by statute, so they are established without Diet deliberation. That is why a public comment round like this is in practice the only chance for the public to express a view before the details take effect. The substance of the amendment is set out in the two attached PDFs on the case page: the "Guidelines for Submitting Comments (including where to send them)" and the "Draft Ordinance (Outline)." To avoid misdirected submissions, you must read both documents in full and then submit via the method and address specified in the guidelines. Inquiries go to the Immunization Division, Infectious Disease Control Department, Health and Welfare Bureau, MHLW.

👥 Who is affected?

• ●Foreign parents raising children in Japan (routine immunizations are run by the municipality where you are registered)
• ●Medical institutions and municipal staff involved in immunization practice
• ●Foreign residents who want to comment on how the immunization system is operated
• ●Anyone concerned with their own or their family's immunization records and procedures

🌏 Impact on foreign residents

Routine immunizations under the Immunization Act are carried out by the municipality where you are registered as a resident. Mid- to long-term residents holding a residence card are recorded in the Basic Resident Register, so they sit inside this same framework. That means even a "detail-level" amendment to the enforcement regulations is not unrelated to how foreign households in Japan receive vaccinations and handle the paperwork. At the same time, information on ordinance amendments is published only as Japanese-language PDFs, with no multilingual guidance. The deadline is also written in the Japanese administrative style — "0:00 on September 27" — which is easy to misread as meaning you can submit throughout September 27. If you plan to comment, work on the basis that you must finish by the end of September 26. The submission method, format and required items (such as how your name and contact details are handled) are set in the Guidelines for Submitting Comments, so check eligibility and requirements there. Even if you do not submit a comment, the finalized content may affect vaccinations for you or your family, so it is worth checking the results published after September 27.