Mexico: rules and approvals
Mexico has two approval schemes, telecom homologation and NOM certification, and neither is mandatory for every product; which applies depends on what is being sold.
The IS-04Z1 is an Ex mobile phone for people working inside classified areas at Mexican refineries, offshore platforms, petrochemical plants and fuel terminals. This page sets out how a rugged cell phone supply route to Mexico will work for the IS-04Z1, and what is and is not available before launch.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. A rugged cell phone for Mexico cannot be bought yet: the SAMS IS-04Z1 is pre-launch (certification in progress, no certificate issued), and the datasheet, certification schedule and safe-area evaluation units are available now.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ingress protection | IP65 to IP68 sealing | IP68 design |
| Drop and shock | A stated drop height onto concrete | Specification on request |
| Explosion protection | A separate certificate and marking | In progress; not issued |
| Where it applies | Mexico: Altamira, Tamaulipas, Tula, Hidalgo, Dos Bocas, Tabasco | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Mexico. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The main operators, industrial areas and sites that the SAMS Mexico market guide covers.
Mexico has two approval schemes, telecom homologation and NOM certification, and neither is mandatory for every product; which applies depends on what is being sold.
Oil was first refined into kerosene around 1876 near Tampico, and Pemex's Tula refinery in Hidalgo is among its major inland refining sites.
NOM certificates of conformity, issued by bodies such as NYCE and ANCE, allow customs clearance into Mexico, and the Secretaria de Economia oversees NOM enforcement.
The offshore Cantarell field was discovered in 1976, started production in 1979 and peaked in 2004, so ageing offshore infrastructure is a feature of Mexican upstream work.
A rugged phone is built to survive water, dust, drops and rough handling, usually rated by an IP code and a drop specification. Ruggedness is an environmental property: it says nothing about whether a phone may be used where flammable gas or dust is present. That is decided by explosion-protection certification and marking.
The IS-04Z1 combines both: an IP68 sealed rugged build and a design for Zone 1 and Zone 21 (marking target Ex ib IIC T4). The explosion-protection certificates are in progress and none has been issued.
In Mexico. Altamira, Coatzacoalcos, Dos Bocas and a Campeche deck combine high humidity with salt-laden air and long outdoor hours. IP68 sealing and a rugged build address that physical punishment. They do not replace explosion protection, which comes only from the marking after certification, and homologación for the radio is a separate step.
There is no stock to order for Mexico yet. The IS-04Z1 is pre-launch, certification is in progress, and supply will run through authorised distributors after the certificates are issued. Procurement teams can prepare now with the datasheet, the certification schedule and a safe-area evaluation.
The technical specification, marking target and conditions of use, sent by email.
Which certificates are in progress, in what order, and what is still to be confirmed.
Evaluation units can be used for connectivity, MDM enrolment and workflow testing outside classified areas.
Tell us the site, zone, gas group and quantity so the right authorised distributor can contact you.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
It is designed to IP68 sealing, with glove-friendly controls. Ruggedness is not explosion protection: that depends on the certificates, which are in progress.
The market guide for Mexico covers Dos Bocas, Tabasco, Bay of Campeche, Ciudad del Carmen, Coatzacoalcos and Minatitlán, among others. Site-level pages are linked below.
Through authorised distributors once certificates exist. Until then SAMS can send the datasheet and certification schedule and arrange safe-area evaluation units.
Following the 2025 changes, the Comision Reguladora de Telecomunicaciones within the Agencia de Transformacion Digital y Telecomunicaciones issues Certificates of Homologation, replacing the IFT. Check the current procedures with the CRT or an accredited body, as supplier documents may still cite IFT.
Gulf coast and offshore sites typically combine heat, high humidity, salt air and seasonal storms, so check ingress protection, corrosion resistance and operating temperature range. Confirm platform transfer rules, such as helicopter battery restrictions, with the operator before deployment.
Radio equipment needs homologación separately from hazardous area approval, and that step is in progress alongside the explosion protection programme. No approval has been granted yet. Check with the site and your telecoms team which documents they will require before any device is enrolled.
Related guides for Mexico and for Mexico.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Name the site and the operator and we will send what is available before launch.