Mexico: rules and approvals
In 2025 the IFT was dissolved and replaced by the Agencia de Transformacion Digital y Telecomunicaciones, within which the Comision Reguladora de Telecomunicaciones now issues Certificates of Homologation.
Mexico · Ex-proof
Ex-Proof Smartphone in Mexico
The IS-04Z1 is an Ex mobile phone for people working inside classified areas at Mexican refineries, offshore platforms, petrochemical plants and fuel terminals. If you are specifying an Ex-proof smartphone for Mexico, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicEx-proof
DeviceSmartphone
RouteSpecification
WhereMexico
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Mexico: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
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.
At a glance · Ex-proof
Checklist: Ex-proof smartphone for Mexico
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| Where it applies | Mexico: Dos Bocas, Tabasco, Bay of Campeche, Ciudad del Carmen | Classified by the site operator |
Product · Mexico
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
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.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The market · Mexico
Where this applies in Mexico
The classified areas, operators and sites below are the ones covered in the SAMS Mexico market guide.
Operators, EPCs and contractors
- Pemex
- The national refining system, Campeche production, pipelines and terminals
- CFE
- Power stations and their fuel handling and storage areas
- Braskem Idesa
- The Etileno XXI polyethylene complex in southern Veracruz
- Alpek and Indelpro
- Polyester and polypropylene production on the Gulf coast
- Cydsa
- Chemicals and underground hydrocarbon storage in Veracruz
- Vopak
- Chemical and petrochemical tank terminals at Altamira and Coatzacoalcos
Industrial areas and sites
- Dos Bocas, Tabasco
- The Olmeca refinery, still ramping up through 2026
- Bay of Campeche
- Ku-Maloob-Zaap, Cantarell and the Ayatsil development
- Ciudad del Carmen
- The onshore base supporting the offshore fleet
- Coatzacoalcos and Minatitlán
- Refining and petrochemicals along the Isthmus corridor
- Altamira, Tamaulipas
- The leading port for petrochemical fluids in Mexico
- Tula, Hidalgo
- Refining and power generation on the central plateau
Field notes · Mexico
More about Mexico that matters for portable equipment
Mexico: rules and approvals
Telecom and wireless products follow the PEC conformity assessment procedure, which results in a Certificate of Homologation, so older IFT references in supplier paperwork may be out of date.
Mexico: rules and approvals
Applicants are described as needing in-country testing in Mexico or at a laboratory recognised under a mutual recognition agreement, plus a local representative or importer.
Mexico: background
Pemex was formed by decree on 7 June 1938 after the nationalisation of the private oil companies, and it is still state-owned and run by the government.
The term · Ex-proof
What “Ex-proof” means for a smartphone
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Mexico. NOM-001-SEDE follows the American structure, so a Mexican drawing may read Clase I División 1 where an international one reads Zone 1. A marking check therefore compares II 2 G Ex ib IIC T4 with whichever language the plant drawings use. The IIC group covers the hydrogen and ethylene found on Gulf coast units, and T4 should be confirmed.
The route · specification
Specifying an Ex-proof smartphone for Mexico
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Mexico
Frequently asked questions
Can we buy an Ex-proof smartphone in Mexico today?
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.
What does an Ex-proof smartphone in Mexico cost?
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
What Ex marking will the IS-04Z1 carry?
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
Which sites in Mexico does this cover?
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.
Is intrinsically safe the same as explosion proof?
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Do I need both homologation and NOM certification for a phone in Mexico?
Not always. Mexico has telecom homologation and NOM schemes, and which applies depends on the product. Radio products generally need homologation, while some electrical products also need NOM certificates for customs clearance. Confirm both requirements with a Mexican certification body before shipping.
Where does hazardous-area work concentrate in Mexico?
Typically Pemex offshore platforms in the Gulf of Mexico, onshore fields and gas processing plants, refineries such as Tula, and petrochemical complexes on the Gulf coast. Each operator issues its own classification, so request the area drawing and the gas group and temperature class before specifying equipment.
Do Mexican drawings in Clase I División 1 match a Zone 1 device?
They are different systems. Mexican practice follows the American code, so Clase and División is common, while the IS-04Z1 is designed for Zone 1 and Zone 21 and has an NEC 500 route in progress. The mapping is a documentation matter, so confirm acceptance with the unidad de verificación and the plant.
Related guides
Keep exploring
More on Mexico, and on other places in Mexico.
Rugged Mobile Phone Supplier in MexicoSame place, different guide
ATEX and IECEx Mobile Phone Supplier in MexicoSame place, different guide
Industrial Mobile Phone in MexicoSame place, different guide
Hazardous Area Mobile Phone in MexicoSame place, different guide
Explosion-Proof Mobile Phone in MexicoSame place, different guide
IECEx Mobile Phone Distributor in MexicoSame place, different guide
Mexico market guideCertification route and regulators
All guides for MexicoEvery route we cover
Certification statusWhat is in progress
Enquiry · Mexico
Ask about the IS-04Z1 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.
Enquiry · Mexico
Launching Q4 2026
Planning for Mexico?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.