NOM-208-SCFI-2016 – Wireless Transmission Certification

If you plan to import or commercialize radiofrequency equipment in the Mexican market, complying with NOM-208-SCFI-2016 is mandatory. This technical standard ensures the efficient use of the radio spectrum and prevents interference between short-range wireless devices.

Important: The Regulatory Shift from IFETEL to CRT

Telecommunications oversight in Mexico previously fell under IFETEL. This regulatory body has transformed into the Comisión Reguladora de Telecomunicaciones (CRT). The CRT now manages spectrum allocation, market surveillance, and device compliance. For importers, the main practical effect is that homologation after obtaining the certificate is handled through the CRT to obtain your official product registration number.

Covered Products and the Transition to the CRT under NOM-208-SCFI-2016

This standard applies to all radiocommunication equipment using spread spectrum techniques and digital modulation across unlicensed frequency bands:

• 902 MHz – 928 MHz: Industrial monitoring, telemetry, and IoT sensors.
• 2400 MHz – 2483.5 MHz: Standard connectivity including Wi-Fi 2.4 GHz, Bluetooth, and Zigbee.
• 5725 MHz – 5850 MHz: Higher-bandwidth applications (such as 5 GHz Wi-Fi).

Testing protocols align with technical provision IFT-008-2015, as well as IFT-017-2023 (which covers extended bands for 5 GHz, 6E, and 7 Wi-Fi). As previously mentioned in this article, IFETEL has transitioned to the CRT. Currently, these protocols serve only as a reference; therefore, all procedures related to obtaining NOM-208-SCFI-2016 certification must be processed through the Telecommunications Regulatory Commission (CRT).

The products and equipment to which this NOM typically applies

• Wireless devices like Wi-Fi routers, Bluetooth headsets, cordless phones, and IoT sensors.
• Short-range devices (SRDs) marketed, imported, or distributed in Mexico.

Exclusions under NOM-208-SCFI-2016

While most short-range wireless devices fall under this regulatory framework, certain products are exempt or follow dedicated compliance pathways. You do not need to apply NOM-208-SCFI-2016 to:

• RFID Devices in the 900 MHz Range: These follow specialized testing protocols rather than standard wireless device rules.
• Non-Spectrum Equipment: Equipment operating outside the specified frequency bands or using non-covered modulation techniques.

Important: NOM-208-SCFI-2016 It applies to new products entering the Mexican market, replacing NOM-121-SCT1-2009 and NOM-EM-016-SCFI-2015.

Key Requirements For Compliance With NOM-208-SCFI-2016

To legally sell or distribute wireless products in Mexico, manufacturers and importers must demonstrate compliance across five main pillars:

1. Technical Specifications

Before entering the market, devices must prove they can operate cleanly without creating radio interference. Detailed testing parameters align with Technical Provision IFT-008-2015 (or its latest update):

• Frequency Adherence: Devices must operate strictly within their assigned bands to avoid interference.
• Output Power: Must comply with maximum permissible power levels (e.g., ≤1 W for most SRDs) to limit signal range and interference.
• Frequency Stability: Must maintain stable frequencies to prevent drift into unauthorized bands.
• Bandwidth and Channel Spacing: Must adhere to specified limits for efficient spectrum use.

2. Performance Requirements

These guidelines ensure that your device functions reliably in real-world environments without degrading local wireless networks:

• Interference Protection: Guarantees reliable operation without causing harmful interference to other registered radio systems.
• Signal Quality: Devices must meet minimum performance criteria for signal integrity and modulation accuracy.

3. Test Methods

Evaluation is based on Technical Provision IFT-008-2015, combining Mexican standards (NMX series) with international benchmarks like FCC Part 15 equivalents. Laboratory evaluations specifically check:

• Frequency Stability: Measured under varying temperature and voltage conditions.
• Output Power: Verified across operational ranges to avoid excessive RF radiation.
• Bandwidth Occupancy: Verified alongside hopping sequences for spread-spectrum technologies.

Technical specifications (such as IFT-008 and IFT-017) remain as testing references but are administered under the framework and laboratories authorized by the Comisión Reguladora De Telecomunicaciones.

4. Labeling for products under NOM-208-SCFI-2016

With the recent transition from IFETEL to CRT, the IFT ID has been replaced by the CRT identifier.

• Product labeling no longer requires the “IFT” acronym; instead, it requires the CRT ID or CRT registration number.
  It serves the same purpose: demonstrating to customs and other Mexican authorities that the device holds the required legal registration and homologation. This label serves as the consumer’s and the authority’s guarantee that the device is legal for use in Mexico.

The final Type Approval Certificate previously issued by the IFT is now managed and issued by the CRT (CRT Homologation / CRT Approval).

5. Compliance and NOM-208-SCFI-2016 Certification

• Requires a Certificate of Conformity from accredited certification bodies and IFT homologation.
• Testing must be conducted by accredited labs under EMA (Entidad Mexicana de Acreditación) guidelines.
• Certificates from prior standards (NOM-121, NOM-EM-016) remain valid until expiration but cannot be extended to new models.
• Frequency stability under temperature and voltage variations.
• Output power measurement.
• Bandwidth occupancy and hopping sequence verification.

Purpose and Enforcement

NOM-208-SCFI-2016 ensures short-range devices like Wi-Fi and Bluetooth equipment operate safely and efficiently, protecting consumer health, safety, and telecommunications infrastructure. It aligns with Mexico’s spectrum management goals under the Ley Federal de Telecomunicaciones y Radiodifusión. Enforcement is managed by:

• Secretaría de Economía: Oversees NOM compliance and certification.
• CRT (Comisión Reguladora de Telecomunicaciones): Regulates spectrum use and conducts market surveillance, followed by final CRT homologation approval.
• PROFECO: Monitors consumer products.
• Customs authorities: Verify certificates at import.

Accelerate Your Entry into the Mexican Market

We offer specialized consultancy services to guide you through every step of the certification process.

• Expert Guidance: We help you interpret technical requirements and select the appropriate testing laboratories.
• Efficiency: Our streamlined approach reduces time-to-market, ensuring your products are ready for sale faster.

Non-compliance (such as exceeding power limits or lacking certification) can result in fines, seizures, or market bans. Let us handle the technicalities while you focus on scaling your business. Contact us.