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

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What follows is LexLint's own research summary of this law, not legal advice.

An AI transparency rule binding private bodies.

As of 23 September 2026.

What it requires

  • This duty is enacted but not yet in force; it takes effect on 1 March 2027.
  • 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.

What this law does

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

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 17 July 2026, and takes effect on 1 March 2027.

When LexLint raises it

  • generates_content
  • operates_social_platform

Read the law

official bill outline (要綱), Ministry of Internal Affairs and Communications, matching Act No. 58 of Reiwa 8 as promulgated

Every line above is drawn from the primary source linked here, read on the date shown. This is a research summary, not legal advice.

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