Japan's Cookie Regulation: Overview
Japan does not have a comprehensive cookie regulation equivalent to the EU's ePrivacy Directive. However, the following laws are relevant:
- APPI: Regulation of third-party provision of "personally related information" (Article 31)
- Telecommunications Business Act: 2023 amendment introducing external transmission rules
- Unfair Competition Prevention Act: Trade secret protection angle
APPI and Cookies
Personally Related Information (APPI Articles 26-2, 31)
Cookies themselves generally do not constitute personal information (they don't identify individuals). However, they qualify as "personally related information" — information about living individuals that is not personal data, pseudonymized data, or anonymized data.
Consent Requirement for Third-Party Provision (Article 31)
When providing personally related information (including cookies) to a third party, prior consent from the individual is required if the provider knows the recipient will handle it as personal data.
Examples: - Passing cookies to an ad network knowing it will match them with member IDs - Sending cookies containing user IDs to a third-party analytics tool
Cookies Linked to Personal Information
If cookies are internally linked to names, email addresses, etc., they must be handled as personal data under APPI.
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Try for free →2023 Telecommunications Business Act: External Transmission Rules
Overview
The 2023 amendment (effective June 2023) introduced external transmission rules (Article 27-12).
Covered entities: Providers of web services or apps with features that transmit user information externally.
Obligation: Publish or notify users of: 1. Content of transmitted information 2. Name and address of the recipient 3. Purpose of use of the transmitted user information
Examples of Covered Tools
| Tool | Example Transmitted Data |
|---|---|
| Google Analytics | Page URLs, IP address, Cookie ID |
| Facebook Pixel | Browsing data, conversion data |
| Twitter/X Pixel | Site visit information |
| Ad SDKs | Device identifiers, behavioral history |
Practical Response: Privacy Policy Updates
Recommended privacy policy language:
> [External Transmission] This service uses the following tools, which transmit user information externally: Google Analytics (Google LLC) — Data transmitted: page URL, session duration, device info; Purpose: access analysis, service improvement; Opt-out: https://tools.google.com/dlpage/gaoptout. (List other tools similarly.)
Consent Implementation
Is a Cookie Consent Banner Required?
Under Japanese law, prior consent banners for non-essential cookies are not legally required. However, they are recommended for:
- GDPR extraterritorial compliance: If EU residents access the site
- Building trust: transparency with users
- APPI Article 31 compliance: third-party provision of personally related information
Implementation Guidelines
| Cookie Type | Recommended Approach |
|---|---|
| Essential cookies | No consent required |
| Analytics cookies | Provide opt-out mechanism |
| Advertising cookies | Prior consent (mandatory under GDPR) |
| Third-party cookies | Check APPI personally related information rules |
Opt-Out Provision
While not legally required under Japanese law, listing opt-out mechanisms for each tool in the privacy policy is standard practice.
Summary
Japan's cookie rules are less stringent than Europe's, but the 2023 Telecommunications Business Act reform mandates transparency for external data transmissions. At minimum, disclose external tools in the privacy policy and provide opt-out options. GDPR prior consent requirements apply when EU residents use your service.