On November 5, 2025, Japan's Ministry of Economy, Trade and Industry and the UK Department of Science, Innovation and Technology signed a Mutual Recognition Agreement (MRA) for cybersecurity testing and certification. Under the Mutual Recognition Agreement:

• Products that have passed PSTI cybersecurity certification and provide online self-declaration can be considered to have met the technical requirements of JC-STAR Level 1 when applying for JC-STAR Level 1, and will adopt a simplified procedure.
• Products that have passed the JC-STAR Level 1 evaluation and have adopted the certification mark can be considered to meet the requirements of PSTI.

Click this link to view the original text of the relevant mutual recognition agreement.