If you meet all the requirements, you must complete your pre‑registration and schedule your appointment on the Integrated Nationality and Naturalization System (SINNA) website.
Before you begin:
- 📧 You need to have an email address.
- 🖥️ The pre‑registration can only be completed on a computer (not on a mobile phone or tablet).
- 💾 Once you start the pre‑registration, you must finish it. If you don’t complete it, the information will not be saved.
Steps for your pre‑registration and appointment
- Go to the website: https://reipv6.sre.gob.mx/sinna/
- Register your email: Enter your email address to receive the link.
- Check your email: Open the email you received and click on the link.
- Complete your pre‑registration: Fill in your information and complete the DNN‑3 application.
- Choose the module: Select the location where you will complete your procedure.
- Select your appointment: Choose the date and time.
- Confirm: You will receive your folio number and appointment confirmation by email.
At UNHCR, we can guide you free of charge throughout your naturalization process.
📞 Toll-free number: 800 226 8769 or 800 283 2718 (Outside Mexico, dial +52 first)
📱 WhatsApp: +52 55 7005 5950 and +52 55 2535 2950
📧 e-mail: [email protected]