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Japan Seeks Public Comment on Revised Guidelines for Mobile Internet Speed Measurement and Disclosure

Japan's communications authority is accepting public comments on proposed revisions to guidelines governing how mobile carriers measure and report real-world internet speeds to users.

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Key Points

  • • Japan's communications ministry proposed revisions to guidelines on mobile internet speed measurement and disclosure
  • • Public comments are being accepted from November 7 to December 7, 2026
  • • This is a voluntary comment process, not a mandatory procedure under the Administrative Procedure Act
  • • Specific details of the proposed changes were not included in the notice summary

Japan's Ministry of Internal Affairs and Communications has opened a public comment period on proposed revisions to its guideline concerning how mobile network operators measure and disclose the actual, real-world internet speeds of the connection services they provide [1]. The proposal was published on November 7, 2026, and the ministry is accepting opinions from the public until 23:59 on December 7, 2026 [1].

The guideline in question covers the methods mobile carriers use to measure effective internet connection speeds and the ways they communicate that information to users [1]. According to the notice from the Telecommunications Bureau's Data Communications Division, the revision does not constitute an "order" as defined under Article 2, Item 8 of the Administrative Procedure Act, meaning this is a voluntary call for public opinion rather than a mandatory statutory consultation [1].

The public comment process is being jointly handled by two offices within the ministry's Telecommunications Bureau: the Data Communications Division of the Telecommunications Business Department, and the Consumer Contract Appropriateness Promotion Office within the Charges and Services Division of the same department [1]. Contact numbers for inquiries were provided for both offices [1].

The ministry has made the full text of the proposed guideline revision, along with an accompanying press release, available for review, and these documents can be inspected or obtained at the Data Communications Division office [1]. Those wishing to submit comments are instructed to first review both the full comment submission guidelines, including where to send them, and the complete text of the proposed revision before submitting [1].

However, the sources do not specify what substantive changes the revision would make to the existing measurement or disclosure methods, so it is not yet clear how the guideline itself would change if adopted [1]. Readers who wish to submit their own opinions, or who want to see the specific proposed changes, should consult the official public comment notice and the linked proposal and press release documents directly [1].

Source credit 出典：「「移動系通信事業者が提供するインターネット接続サービスの実効速度計測手法及び利用者への情報提供手法等に関するガイドライン」の改正案に対する意見募集」（e-Govパブリックコメント）（https://public-comment.e-gov.go.jp/servlet/Public?CLASSNAME=PCMMSTDETAIL&id=145210795&Mode=0）、PDL1.0（https://www.digital.go.jp/resources/open_data/public_data_license_v1.0）を加工してJapan News (j.apan.news)が作成 This article is Japan News's own English summary of the Japanese original. It has been translated and edited by Japan News; it is not an official translation, and the e-Gov Public Comment did not write or review it.

Sources

This article was written by AI from these Japanese-language reports. Check them before acting on anything here.

  1. [1] e-Gov — original report (Japanese)

AI-written summary of Japanese reports; not human-reviewed; check the linked sources. How we write articles