Mexico IFT-011-2022 Cell Broadcast Amendment Effective Oct 27, 2026
Mexico Publishes Final IFT-011-2022 Cell Broadcast Amendment: New Mobile Terminal Alert Requirements Effective October 27, 2026
Mexico's Comisión Reguladora de Telecomunicaciones (CRT) has published the final amendment to Technical Disposition IFT-011-2022 Part 3, the regulation governing Cell Broadcast Service (CBS) emergency-alert functionality in mobile terminal equipment (ETM). Approved by the CRT Plenary on August 26, 2026, and published in the Diario Oficial de la Federación (DOF) on August 28, 2026, the amendment enters into force 60 calendar days after publication on October 27, 2026.
The update restructures Mexico's public-warning framework at the device level. It introduces new alert categories and channel assignments, makes key emergency alerts non-disableable, requires differentiated audible and vibration behavior, revises conformity-assessment test methods, and defines transition paths for mobile terminals already holding Mexican Certificates of Conformity and Certificates of Homologation.
Regulatory Background
DT IFT-011-2022 Part 3 was originally issued by the former Instituto Federal de Telecomunicaciones (IFT) and published in the DOF on September 13, 2022, establishing the technical specifications mobile terminals must meet to receive Cell Broadcast emergency and risk notifications. Following industry proposals from ANCE and ANATEL (Mexico's industry association) in 2023 and further regulatory development, the CRT which has assumed the IFT's regulatory functions ran a public consultation from August 10 to August 21, 2026, before adopting the final text.
The disposition retains its "IFT-011-2022" designation because it originated under the IFT framework. According to the published text, the CRT drew on international alerting experiences from Japan, South Korea and Brazil, and references ETSI TS 123 041 V19.3.0 (2026-02) for the technical realization of CBS across GSM, UMTS, LTE and 5G.
Key Changes in the Mexico IFT-011-2022 Cell Broadcast Amendment
The amendment establishes three priority categories of emergency communication, each with defined display, sound and vibration behavior:
Maximum Earthquake Alert (Alerta Máxima por Sismo)
Maximum Alert for Other Hazards (Alerta Máxima)
Preventive Civil Protection Message (Aviso de Protección Civil)
Other existing categories, Amber Alerts, test alerts, exercise alerts and information messages, are preserved, with the amendment clarifying which categories users may or may not disable.
New Cell Broadcast Channel Assignments
Alert Category | Spanish | Indigenous National Languages and/or English |
Maximum Earthquake Alert | Channel 4370 | Channel 4383 |
Maximum Alert – Other Hazards | Channels 4371–4372 | Channels 4384–4385 |
Preventive Civil Protection Message | Channels 4373–4378 | Channels 4386–4391 |
The language of each message (Spanish, any national Indigenous language, or English) is determined by Mexico's Coordinación Nacional de Protección Civil.
Mandatory Device Behavior
Non-disableable alerts: Maximum Earthquake Alerts, Maximum Alerts for Other Hazards and Preventive Civil Protection Messages cannot be disabled by the user.
Immediate display: these alerts must appear immediately in a clearly differentiated pop-up window, without user interaction including during an active voice call or data session, and without disconnecting it.
Distinct titles: "Alerta Máxima por Sismo," "Alerta Máxima" and "Aviso de Protección Civil" must be displayed according to the alert type.
Differentiated audio and vibration:
Earthquake alerts keep the prescribed maximum-volume audible signal and vibration cadence.
Other-hazard alerts use a new, distinct maximum-volume signal and vibration cadence (total cadence of 10.5 seconds, with specified frequencies and timing).
Preventive civil-protection messages use the terminal's configured notification tone.
Message integrity: devices must detect and discard duplicate alerts and must not allow forwarding, replying to the sender, or copying alert content.
Updated Test Methods
The conformity-assessment procedures now verify alert display format, the inability to disable specified categories, audible-signal duration, and vibration cadence including oscilloscope-based measurements with defined tolerances with results documented in the applicable test-report format.
Certification Impact Summary
Area | Impact | Level |
New mobile terminal homologations (post-Oct 27, 2026) | Must demonstrate full compliance with the revised alert categories, channels, audio/vibration behavior and test methods | High |
Applications filed before entry into force | Continue under the rules in effect when the procedure began | Low |
Existing approvals hardware supports new functions | Functions may be enabled via OS update from the day after entry into force; holder notifies the certification body; model enters next year's surveillance; certificate may be expanded | Medium |
Existing approvals hardware does not support new functions | Holder must notify the certification body the day after entry into force; certificate remains valid as issued but cannot be expanded and is not subject to compliance surveillance under the transition provision | Medium |
Recertification / re-homologation | Not required for holders covered by the transition provisions solely because of this amendment | Low |
Testing laboratories & certification bodies | 60 calendar days to update accreditation and authorization; new-rule testing starts only once the CRT authorizes the first applicable lab and certification body | High (capacity risk) |
What This Means for Manufacturers
For OEMs, brand owners and certificate holders, this is not a network-only update it directly affects device software, user settings, alert UX and test readiness. The most important immediate task is portfolio classification: determining, model by model, whether each approved terminal has the hardware capability to support the new categories, channels and audio/vibration behavior.
Devices with capable hardware can be brought into compliance through an operating-system or firmware update, keeping the option to expand the certificate later, in exchange for inclusion in surveillance.
Devices without capable hardware remain legally marketable under their existing certificate, but that certificate is effectively frozen no expansions, such as adding variants or updated models.
New launches planned for late 2026 and 2027 must be engineered and tested to the revised requirements. Because testing under the new rules depends on the CRT authorizing labs and certification bodies, early coordination is essential to avoid homologation delays.
Manufacturers should also align chipset/modem vendors and OS software teams early, since CBS channel handling, alert presentation and duplicate-detection logic typically sit across the modem, OS and OEM software layers.
Timeline and Required Actions
Date | Milestone | Required Action |
Aug 10–21, 2026 | Public consultation (closed) | — |
Aug 26, 2026 | CRT Plenary approval | — |
Aug 28, 2026 | Publication in the DOF | Review the final text; start portfolio mapping |
Sep – Oct 2026 | Transition window | Inventory active Certificates of Conformity and Homologation under IFT-011-2022 Part 3; classify each model's hardware capability; plan OS/firmware updates; file any pending homologation applications that should proceed under current rules |
Oct 27, 2026 | Entry into force | New requirements apply; revised rules govern new conformity-assessment work once authorized labs/certification bodies are available |
Oct 28, 2026 | Transition notice date (Transitory Articles 6 and 7) | Notify the relevant certification body for each existing approval either OS-update path or hardware-limited path |
By ~late Dec 2026 | End of 60-day lab/certification-body update period | Confirm lab and certification-body authorization status before scheduling new tests |
2027 | Annual certification surveillance | Models enabled via OS update are included in the following year's surveillance |
Required Actions Checklist
Identify all active Mexican approvals relying on IFT-011-2022 Part 3.
Classify each model: hardware-capable vs. hardware-limited.
Plan and validate OS/firmware updates for capable models (channels 4370–4391, titles, tones, vibration, non-disable settings, duplicate detection, no forward/copy).
Prepare certification-body notifications for October 28, 2026.
Submit pending homologation applications before October 27 where continuing under current rules is preferable.
Confirm CRT authorization status of test laboratories and certification bodies before scheduling new-rule testing.
Update internal compliance documentation and test-readiness plans for 2027 launches.
Frequently Asked Questions
Do all existing phones need to be recertified? No. The transition provisions state that covered certificate holders do not need to recertify or re-homologate solely because of this amendment. The applicable path depends on the device's hardware capability.
When can testing under the new requirements start? Only after the amendment is in force (October 27, 2026) and the CRT has authorized the first applicable testing laboratory and certification body.
Which devices are in scope? Mobile terminal equipment that can use radio spectrum or connect to telecommunications networks and falls within the scope of IFT-011-2022 Part 3 primarily smartphones and cellular devices supporting CBS.
Conclusion
The final Mexico IFT-011-2022 Cell Broadcast amendment marks a shift toward a more segmented, accessible and harder-to-ignore national alerting system. With entry into force on October 27, 2026, and transition notices due the following day, manufacturers have a narrow window to classify their portfolios, plan software updates and secure testing capacity. Early action will protect both existing approvals and upcoming market launches in Mexico.
