What is a public comment (パブリックコメント) in Japan?

It is the opinion-submission procedure (意見公募手続) under Articles 39 to 45 of the Administrative Procedure Act. When a ministry or agency makes or amends a regulation, ordinance, or certain guidelines, it must publish the draft and invite comments from the public, as a rule for at least 30 days, before finalizing it. The agency must then consider the comments and publish its response. It is the formal point at which a rule that is otherwise made inside government is opened to outside argument.

Can a foreign company submit a public comment in Japan?

Yes. There is no standing requirement and no nationality bar. Anyone, an individual, a Japanese company, a foreign company, or an industry association, may submit a comment on any open consultation. This is what makes the procedure unusually accessible: a foreign company with a stake in a rule has exactly the same formal right to be heard as a domestic one, and its comment goes into the same record the agency must answer.

How long is the comment window?

As a rule, at least 30 days from the day the draft is published, and in practice the large majority run close to that. Across the consultations we track, the average window is about 30 days, with some as short as a week and a few extending to two months. Thirty days is not long if you are not already watching for the consultation, which is the practical reason many companies miss the ones that affect them.

Does the government have to act on the comments it receives?

It has to consider them and publish its response, not adopt them. The agency publishes the comments received, its view on each substantive point, and whether the draft was changed as a result. So a comment cannot veto a rule, but it forces a reasoned, on-the-record answer, and a well-argued, evidenced submission, particularly one echoed across several submitters, does move outcomes. A single generic objection rarely does.

What language should a public comment be in?

Japanese. Comments are read and answered by the officials drafting the rule, and a submission framed in their language, in their terms, and against their stated reasoning is the one that lands. A translated global position statement is far weaker than an argument built in Japanese around the specific draft and the specific regulatory logic the agency has set out.

Where do you submit a public comment?

Most national consultations run through the e-Gov public comment portal (パブリック・コメント), which lists open consultations and takes submissions, though some agencies specify email or post. The harder part is not the mechanics of submitting but knowing the consultation opened at all: the window is short, the notices are scattered across agency sites, and there is no single alert unless you are monitoring for them.

How to Submit a Public Comment (パブリックコメント) in Japan

The public comment procedure is the single point at which a Japanese rule, otherwise written inside government, is formally opened to outside argument before it is finalized. Anyone can submit, including a foreign company. The agency must consider what it receives and answer on the record. And almost every foreign company that should be using it is not.

This is the mechanism that our other guides keep pointing to. Every one of them ends the same way: engage while the rule is still being written. The public comment procedure, パブリックコメント, is where “while it is still being written” becomes a concrete, dated, on-the-record opportunity, open to you by right.

What follows is how the procedure works, what a comment can and cannot do, what makes one land, and why the real difficulty is not submitting but knowing the window opened. The legal basis is the opinion-submission procedure (意見公募手続) under the Administrative Procedure Act (行政手続法), Articles 39 to 45.

What the procedure actually is

When a ministry or agency creates or amends a regulation, cabinet or ministerial ordinance, or certain administrative guidelines (命令等), it is generally required to publish the draft and invite public comment before finalizing it. The core obligations are specific:

Publish the draft and the related material, so the proposal is visible before it takes effect.
Invite comments for a set period, as a rule at least 30 days.
Consider the comments received.
Publish the results (結果の公示): the comments, the agency’s response to the substantive points, and whether and how the draft changed.

That last step is the one that gives the procedure its weight. The agency does not have to agree with you, but it does have to answer you, in public, in a document that becomes part of the rule’s record. A rule that ignored a well-founded, widely-shared objection without a credible answer is a rule that was made visibly, on the record, over that objection, and that is a materially different position for the agency than making it in silence.

The unlock: anyone can submit

The feature that makes this procedure so useful to a foreign company is what it does not require. There is no standing requirement, there is no nationality bar, and there is no need to be a registered entity in Japan. An individual, a domestic company, a foreign company, a foreign industry association, all have the same formal right to submit, and all submissions enter the same record the agency must address.

This is rare. Most routes to influence in Japan are relationship-gated: you need the introduction, the membership, the seat on the council. The public comment procedure is the one formal channel that is open by right, to anyone, on any open consultation. For a foreign company that has not yet built the relationships, it is the most accessible legitimate point of entry into a rule that affects it.

What a comment can and cannot do

It is worth being precise about the limits, because overestimating and underestimating the procedure both lead companies to waste it.

It cannot veto a rule. The agency can consider your comment and proceed anyway. The procedure is consultation, not codetermination.

It can force a reasoned answer, and it can move a rule at the margin. Where a comment identifies a genuine problem, an unworkable definition, a disproportionate burden, an unintended consequence, a conflict with another rule, and does so with evidence, agencies do amend drafts, and the published response shows it. The comments that move outcomes share a profile: specific to the draft, argued in the agency’s own terms, backed by data or concrete operational consequence, and, most powerfully, echoed across several submitters so the point cannot be dismissed as one company’s special pleading.

Its real leverage is often earlier. By the time a rule reaches public comment, its shape was usually set at the advisory-council (審議会) stage months before. The comment procedure is the formal capstone, not the first move. The companies that get the most from it are the ones that were already engaged upstream, for whom the comment is the on-the-record confirmation of a case they have been making all along. Used cold, at the comment stage only, it is weaker, but still the one door that is always open.

Which consultations open, and how often

Consultations are not rare, and for some sectors they are frequent. Across the national consultations we monitor, the agencies that open the most are concentrated in a familiar set:

Where consultations cluster	Typical subject matter
Ministry of Agriculture, Forestry and Fisheries	food safety, agricultural chemicals, product standards
Financial Services Agency	financial regulation, disclosure, market rules
Ministry of Health, Labour and Welfare	pharmaceuticals, medical devices, chemical substances, labour
Ministry of Internal Affairs and Communications	telecommunications, broadcasting, data
Immigration Services Agency	status-of-residence and related rules

If your business sits in one of those areas, rules that affect you go out for comment on a regular cadence. The question is not whether the opportunity arises but whether you see it in time.

The real difficulty: the window is short and quiet

The 30-day window is the whole problem. It is not long, and the notice that a consultation has opened is not delivered to you. It appears on an agency’s site and on the e-Gov portal, among hundreds of others, with no signal tuned to your issues. A company that is not systematically watching finds out about the consultation that reshaped its regulatory position after it closed, in the published results.

Across the consultations we track, the window averages about 30 days, and a meaningful minority run shorter. That is the operational case for monitoring: the value of a comment is real, but it is only available inside a short, unadvertised window, and missing the window means the argument you would have made is simply absent from the record the agency answers.

Where this becomes a public affairs question

Everything above is why the public comment procedure is a public affairs instrument rather than a legal one. A law firm can tell you what the rule says once it is made. The comment procedure is about shaping the rule before it is made, and that is a different discipline: watching for the consultation, reading the draft against your commercial reality, building the argument in the agency’s terms, coordinating it across the companies that share your position, and putting it on the record inside the window.

Done well, and especially done collectively, it is the most legitimate and best-documented influence available to a foreign company in Japan. The evidence is public, the channel is open by right, the agency must answer, and, unlike most engagement, it leaves a paper trail you can point to. The two things that decide whether it works are timing and quality: you have to see the window, and you have to file an argument rather than a complaint.

If you want to use the comment procedure on the rules that matter to you, and to be engaged upstream so your comment is the capstone rather than the first you have heard of it, get in touch.

How to use it

Monitor for the consultations that touch you. The window is short and the notice is passive; if you are not watching, you will miss it. See our guide to real-time policy monitoring.
Read the draft against your operations, not in the abstract. The comments that land name a specific, concrete consequence of the specific text.
Argue in Japanese, in the agency’s terms. Answer the reasoning the agency has set out; do not submit a translated global position.
Coordinate. A point made by several submitters is far harder to set aside than one company’s. This is where an industry association, or a coordinated group, earns its place.
Engage upstream too. The rule’s shape is set at the advisory-council stage; the comment is the capstone, strongest when it confirms a case you have already been making.

Why this matters for public affairs in Japan

Japanese rules are made through a long process that is mostly invisible from outside: study groups, advisory councils, ministry drafting, and, near the end, the public comment procedure. For a foreign company, the comment procedure is the one part of that process that is open by right and leaves a record. Treating it as a compliance afterthought, or missing it entirely, forfeits the single most accessible point of formal influence over the rules that govern the business. Treating it as what it is, a scheduled, on-the-record opportunity to change a rule before it settles, is one of the highest-leverage moves in Japanese public affairs.

Gemini Group monitors Japan’s consultations for the issues our clients care about, and drafts and coordinates public comment submissions that land. Contact us to discuss the rules you should be watching.

Further reading: the policy calendar sets out when in the year rules move, how Japanese policymaking works traces the path from advisory council to statute, and our guide to engaging Japan’s ministries covers the upstream relationships that make a comment land.