The International Security Register (ISR)
The International Security Register (ISR) provides a trusted, 24/7 service online or by phone, enabling instant verification and tracing of marked vehicles and other valuable items.
Law Enforcement Statistics show
Proven Reduction in Theft Risk
Secure. Trusted. Proven.
The International Security Register (ISR) is a secure database used by police, insurers, and the public to instantly verify and trace marked components and support the recovery of stolen vehicles and other valuable items. Since 1991, the ISR has played a critical role in crime prevention, asset recovery, and successful prosecutions.
The ISR is the backbone of Retainagroup’s advanced marking systems. With millions of records securely stored, the ISR enables instant verification of marked vehicles, parts, and high-value items. Every record is permanently retained, contributing to long-term crime prevention and detection.
UK-based security register
Phones are staffed 24/7 with calls aimed to be answered within 3 rings.
Emergency response
Specialist services are provided to UK police forces.
Resilient infrastructure
Backup UPS is daily mirrored to our secondary secure site.
Rapid recovery
Backup site operational within 30 minutes.
Accredited security
BAB ISO/IEC 27001:2022 certified for Information Security Management.
How does the ISR system operate?
The system operates through three simple yet highly effective procedures: Marking, Registration, and Verification. The windows and parts of your vehicle are etched with a clearly visible, permanent and unique security code alongside the 24/7 ISR contact telephone number.
Details of vehicles, including the security code and VIN, are then recorded on the ISR. At any time, day or night, a single call to the ISR or visit to ISRcodecheck.com can provide immediate verification of the vehicle’s status.
Free online check: verify the status of your registered vehicle or item
To check online - free of charge - the status of a marked and registered motor vehicle or any other item protected by our system
Data hosted securely in-house with nothing stored in the cloud
BS 7858-vetted operators ensure trusted handling of your data
Every action is logged and monitored for full accountability
Instant verification saves valuable police time for fast and hassle-free checks
Working with the Police for faster recoveries and crime prevention
The ISR Stolen & Recovered Vehicle File integrates daily updates from the Law Enforcement Data Service (LEDS), enabling automatic alerts for stolen vehicles and the creation of skeleton records for unmatched entries, with all data retained indefinitely. This powerful system supports investigations into vehicle cloning and the detection of false plates or stolen parts, such as catalytic converters.
The system provides a 24/7 UK-based, telephone and online service for instant verification of marked items by police, vehicle manufacturers, and members of the public.
How does the ISR work?
No. If asked questions about your vehicle by anyone other than yourself, ISR operators will only confirm whether the information they are given corresponds to the details held on the ISR. If there is any doubt about an enquiry, an ISR operator will telephone you, the registered owner or keeper to clarify the situation. Operators may recommend that an enquirer verify information with the person selling a marked and registered vehicle.
It protects buyers from purchasing used vehicles whose mileage has been falsified. Registering the mileage means criminals cannot profit from tampering with a protected vehicle’s mileage, which is another deterrent against theft.
If your address or vehicle details change, or if you sell your vehicle, you should update your information promptly with the International Security Register to keep records accurate. This helps to ensure continued protection and prevents complications if checks are performed in the future. You can update it here.
To keep the ISR up to date and ensure the vehicle remains fully protected, please contact the ISR on 01233 333000 or click here to register.
Get in touch
Use the form to request a callback or call directly to speak with our UK-based team today.
International Security Register (ISR) 24/7: +44 (0)1233 333000
Sales & General: +44 (0)1233 504167
Email: info@retainagroup.com
Unit 5, St John’s Court,
Foster Road, Ashford Business Park,
Ashford, Kent,
TN24 0SJ,
United Kingdom
Check online the status of a marked and registered motor vehicle or any other item protected by our system: