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Law / Japan

Public Offices Election Act, AI-Generated Content Labelling Duty (2026 Amendment)

Act No. 100 of 1950, as amended by Act No. 58 of 2026, Art. 142-5

An AI transparency rule binding private bodies.

Obligation class
Content labelling, Disclosure
Audit expectation
none
Setting the rule reaches
Elections

What it requires

  • An app that distributes, over the internet, a document or picture used for election campaigning, or used during the official campaign period to campaign against a candidate's election, that carries an image or video AI-related technology created or altered, must display that fact correctly on the screen of the device receiving it, unless the alteration is minor by common social understanding or the content carries no risk of being mistaken for an actual recording.

These lines are LexLint's reading of the law's text.

In the frameworks

NIST AI RMF
  • MEASURE 2.8Risks associated with transparency and accountability – as identified in the MAP function – are examined and documented.
NIST AI 600-1
OWASP Agentic Top 10
  • ASI09Human-Agent Trust Exploitation
MIT mitigations Draft
  • 2.4Content Safety Controls
  • 4.1System Documentation
  • 4.2Risk Disclosure
  • 4.6User Rights & Recourse
FINOS AIGF
ETSI EN 304 223
  • 5.1.3-2Threats developers cannot resolve are passed to operators and on to end-users.
  • 5.3.1-1Users told where and how their data is used, accessed and stored, with developers informing operators.
  • 5.3.1-2.1That guidance covers proper use, limits and likely failure modes.

Our reading of where this law's duties sit in each framework. It never says that running a control meets the law. How we read a framework against the law

Identifiers refer to ETSI EN 304 223 V2.1.1 (2025-12), © ETSI 2025, all rights reserved. ETSI owns the standard; no ETSI text (titles or sentences) is reproduced here. The standard is free to download from ETSI.

What it makes you log

Logging duty

New Article 142-5 requires a person who distributes campaign material online to make the fact of AI creation or alteration display correctly on the recipient's screen. That is a display duty, and the official outline states no duty to create, keep or produce a log or record. The outline's other changes (Article 142-7 on the conduct of internet users, and an annual publication duty for very large platform providers under the Information Distribution Platform Act) are outside this row and are also not record duties. The source is the Ministry's outline of the amending Act, not the enacted text.

Kind
None
As of

What this law does

Drafted with AI

Drafted with AI from the cited sources under the direction of UnGovr staff. UnGovr holds editorial responsibility for this page. How this site is made

Research summary

Legal information, not legal advice. This is LexLint's own research summary of a public legal source, and it creates no attorney-client relationship. For decisions that matter, consult qualified counsel in the relevant jurisdiction. About LexLint

A 2026 amendment inserting a new Article 142-5 into the Public Offices Election Act requires a person who distributes, over the internet, election-campaign material or anti-candidate campaign material carrying an image or video that AI-related technology created or altered, to display that fact on the screen of the recipient's device, unless the alteration is minor by common social understanding or the content carries no risk of being mistaken for an actual recording. The amendment (Act No. 58 of Reiwa 8) was enacted and promulgated on , and takes effect on .

When LexLint raises it

When your app profile says your app generates images with AI, generates video with AI or operates a social platform.

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Page updated .