GCF certification: criteria, members, labs, field trials
The Global Certification Forum (GCF) is a non-profit, membership-driven organisation that has certified mobile devices since 1999 and today certifies phones, modules, chipsets, routers, IoT products and wearables against criteria drawn from 3GPP and other industry test specifications. Most guides describe it as a lab that issues certificates. The GCF documents describe something else: a manufacturer declaration, based on ISO/IEC 17050 principles, backed by tests run in recognised labs, against a quarterly criteria document (GCF-CC) managed in the DCC database, with a Field Trial step on live operator networks. This page is built from those documents, read on October 7, 2026: who may certify which product, what membership costs, what labs need, which networks host Field Trials, what IoT integrators can reuse from a certified module, and where operators such as Vodafone and Deutsche Telekom differ in what they ask of GCF. It sits next to PTCRB, the North American scheme.
What GCF is, and what it is not
Section titled “What GCF is, and what it is not”GCF describes itself as "a non-profit, global membership driven organisation offering mobile and IoT certification programmes based on conformity to agreed standards", active since 1999 and with over 350 members from mobile network operators, device manufacturers and the test industry. It is a 3GPP Market Representation Partner (listed on the 3GPP partners page). Its certification covers 5G and earlier generations, plus programmes for vertical segments: mission critical services with TCCA, connected vehicles and C-V2X with 5GAA, oneM2M and remote SIM provisioning for eSIM.
Three points are often misread:
- It is a manufacturer declaration, not a third-party certificate. The GCF white paper (updated February 2018) states that GCF certification "follows the principles of a supplier's declaration of conformity (SDoC) as defined in ISO/IEC 17050". A manufacturer member declares a device certified once all relevant conformance, interoperability and field trial criteria are met and the evidence is uploaded to the members portal. GCF operator members are then notified, and members may contest a certification.
- It is not a regulatory approval. It does not replace FCC equipment authorisation, an EU RED assessment or any national radio approval.
- It is not operator acceptance. The white paper itself separates core device capabilities, covered by GCF, from operator-specific needs, which "fall outside the scheme". Operators then decide how much weight they give GCF (see the Vodafone and Deutsche Telekom section below).
GCF does not write test cases. The RF, Radio Resource Management (RRM) and protocol test cases come from 3GPP (the TS 36.5xx and TS 38.5xx series, produced by the RAN5 working group); GCF selects which of them become certification criteria, on which validated test platforms, and adds field trial criteria.
How GCF is organised
Section titled “How GCF is organised”| Body | Role, as GCF describes it |
|---|---|
| Board of Directors | Fulfils the statutory obligations of Global Certification Forum Ltd and runs its administration and operation |
| Steering Group (SG) | Oversees certification and agrees new Work Items that define new certification criteria; open to all members |
| Conformance Agreement Group (CAG) | Develops and maintains conformance criteria; tests are typically validated and run on commercial system simulators |
| Field Trial and Interoperability Agreement Group (FTAG) | Develops and maintains Field Trial test scenarios and interoperability use cases |
| IoT Agreement Group (IAG) | Testing and certification requirements for IoT devices using mobile connectivity |
| Performance Agreement Group (PAG) | GCF Performance Metrics: standardised reporting of product attributes not related to interoperability |
| Mission Critical Services Work Stream (MCS WS) | Processes and content for mission critical certification, with TCCA |
| Connected Vehicles Work Stream (CV WS) | Processes and criteria for a standalone connected mobility programme, with 5GAA |
The white paper describes how a technology enters the scheme. A Work Item proposal needs broad support at one of the quarterly Steering Group meetings. When consensus is unclear, a vote is held under a "double majority" rule: a binding decision needs more than 50 per cent of the manufacturer votes and more than 50 per cent of the operator votes cast. The agreement groups then turn the Work Item into criteria. New test platforms must be validated in the lab of a GCF member, and CAG approves each validated combination of test case and platform before it becomes a certification criterion. That validation step does not apply to Field Trial criteria.
GCF-CC and the DCC database
Section titled “GCF-CC and the DCC database”Two names are used, and older guides mix them up:
- GCF-CC (Certification Criteria) is the document that "lists the technical requirements for the certification of devices incorporating the 3GPP technologies and functionalities". GCF calls it "the certification criteria maintained and issued quarterly by GCF in line with the update of standards from 3GPP". The first 5G device certification, completed on July 4, 2019, was made to GCF-CC v3.74.0.
- The DCC is the database behind the criteria. GCF set up the tool in 2007, moved it to a new version in 2021 and onto the main portal platform in June 2022. GCF has called it the "Device Certification Criteria database" (2022) and the "Device Conformance Criteria (DCC) tool" (2024). It tracks Work Items, test platforms and test case validations.
What GCF has published about the DCC, with dates:
| Figure | Value | Source and date |
|---|---|---|
| Validated test cases | More than 8,400 | GCF blog, June 20, 2022 |
| Work Items | More than 1,800 | GCF blog, June 20, 2022 |
| Frequency band configurations to consider | Over 1,000, mostly 4G and 5G | GCF blog, June 20, 2022 |
| Validations recorded | Around 2.2 million | GCF blog, June 20, 2022 |
| Minimum validation for a test case to count | Validated on at least one frequency band | GCF blog, June 20, 2022 |
| Update rhythm | Frequent publications of the criteria, major updates after the quarterly meetings | GCF blog, June 20, 2022 |
The practical rule from the white paper: "as a general rule, devices must be certified against the Certification Criteria in force at the time of testing", and every certification must reference a current version of the criteria. Record the GCF-CC version in the certification file. Access to the DCC test case database is open to every membership type.
Who may certify what, and what it costs
Section titled “Who may certify what, and what it costs”A GCF membership is required to certify a device. The membership type decides which products you may certify. The table merges the GCF Membership Overview and Membership Options pages (fees per year, as published on October 7, 2026).
| Membership | Fee (EUR per year) | What it may certify | Notes |
|---|---|---|---|
| Manufacturer (full) | 10,000 | Consumer devices, modules and chipsets, reference platforms, IoT end products, products with embedded certified modules, MCS clients, eSIM RSP | ISO 9001 required; votes at SG; may sit on the Board and chair groups; may act as RTO and ACE |
| Associate Manufacturer I (AMM I) | 10,000 | Any product, including MCX client platforms, except wireless modules, platforms and IoT chipsets | Votes at SG meetings |
| Associate Manufacturer II (AMM II) | 5,000 | Products where 3GPP connectivity is not the primary function and that embed a GCF-certified module or reference a GCF-certified platform | Not for smartphones, feature phones, modules, platforms or chipsets |
| Operator (full) | 10,000 | Not a product certification role (oneM2M compliance excepted) | Notified of certified products; may challenge certifications; may become a Field Trial Qualified network |
| Virtual Operator | 5,000 | As above for oneM2M | |
| Associate Operator, Associate Virtual Operator | Free | None | |
| Mission Critical Communication Operator, Utility Operator I | 5,000 each | oneM2M (MCCO) | Rights limited to mission critical or utility topics |
| Utility Operator II (450 MHz) | 2,500 | None | Rights limited to utility communications |
| Observer (test industry and others) | 5,000 | None | May act as RTO and ACE; may chair an agreement group |
Fees may be invoiced in pounds sterling or US dollars at the exchange rate of the invoice date, and only bank transfers are accepted. Membership runs either for the calendar year or from July 1 to June 30.
Two rules flow from this for IoT products. Modules require a full Manufacturer membership: the module vendor certifies the module. An integrator whose product embeds that certified module can certify its end product with an AMM II membership, through what the white paper calls an optimised process: certification of the device is linked to its embedded module, and testing concentrates on what the end product adds, "such as antenna, SIM contacts and user-interface".
Labs and assessors: RTO and ACE
Section titled “Labs and assessors: RTO and ACE”| Role | Requirement on the GCF pages |
|---|---|
| Recognised Test Organisation (RTO), conformance | All device testing for GCF must be done by an RTO. Conformance labs must be accredited to ISO 17025 and may test only within the scope of that accreditation |
| RTO, Field Trial and interoperability (commercial labs) | Current accreditation to ISO 17025 and GSMA TS.11 |
| RTO, in-house Field Trial facilities of manufacturer members | Accreditation to ISO 9001 or ISO 17025 |
| Who may become an RTO | Any GCF member that undertakes product testing, except associate members (Testing page); the member submits a declaration that it understands GCF procedures and can test to GCF rules |
| Assessment Capable Entity (ACE) | Determines the tests required for a device and assesses the results. Use of an ACE is mandatory for associate manufacturer members; GCF publishes a directory of third-party ACE (TPACE) providers |
On October 7, 2026 the GCF directory showed 61 conformance RTO entries and 26 Field Trial RTO entries offering services to third parties (entries are lab sites, so one company can appear several times).
Field Trials and the qualified networks
Section titled “Field Trials and the qualified networks”Field Trials are, in the words of GCF, "an integral part" of the scheme: they verify interworking in the operational network environment. Their criteria come from FTAG, which, according to the white paper, draws on operator field trial guidelines maintained by the GSMA Terminal Steering Group. Commercial labs running GCF Field Trials must hold ISO 17025 and GSMA TS.11 accreditation. A network gets Field Trial Qualified (FTQ) status when the operator agrees to provide information and support to manufacturer members running Field Trials on its infrastructure.
The FTQ list published by GCF on October 7, 2026:
| Operator | Country |
|---|---|
| Deutsche Telekom | Germany |
| Emirates Integrated Telecommunications Company (du) | United Arab Emirates |
| MEO | Portugal |
| NTT DOCOMO | Japan |
| Orange | France |
| Telecom Italia | Italy |
| Telefonica | Germany |
| Telefonica | Spain |
| Telefonica | United Kingdom |
| Telstra | Australia |
| T-Mobile | Poland |
| Vodafone | Germany |
| Vodafone | Portugal |
| Vodafone | United Kingdom |
Detailed information about each FTQ network is in the members portal. The GCF Field Trial glossary entry summarises the concept.
Band and technology coverage
Section titled “Band and technology coverage”GCF publishes its band coverage with a date. As of January 2024, GCF certification was active for:
| Technology | Bands active |
|---|---|
| LTE (FDD and TDD) | 27 bands, including one band for C-V2X |
| 5G NR FR1 (sub-6 GHz) | 16 bands, of which 9 also active for NR RedCap |
| 5G NR FR2 (mmWave) | 4 bands |
| eMTC (LTE-M) | 12 bands |
| NB-IoT | 12 bands |
| NTN NB-IoT | 2 bands |
| WCDMA (3G) and GERAN (2G) | All legacy bands |
| Band combinations | More than 250 (carrier aggregation and dual connectivity) |
Remote SIM provisioning for consumer eSIM and IMS services (VoLTE, VoWiFi, VoNR) are also part of the device programme. For IoT eSIM, GCF certifies the GSMA M2M architecture (SGP.02) and says it is working on the introduction of SGP.32. Check the current band list in the members portal before declaring a band: the January 2024 figures are the latest GCF has published on its public page.
Timeline from GCF publications
Section titled “Timeline from GCF publications”| Date | Event |
|---|---|
| 1999 | GCF certification starts |
| 2007 | DCC tool established |
| December 2010 | LTE device certification introduced |
| July 4, 2019 | First device certified including 5G (Huawei Mate 20 X 5G), to GCF-CC v3.74.0 |
| 2020 | First 5G mmWave device and first IoT chipset certified |
| 2021 | C-V2X programme launched with 5GAA; new DCC version |
| June 2022 | DCC moved onto the main GCF portal platform |
| November 2022 | First C-V2X device certified |
| 2023 | Modules overtake smartphones in certifications (35.6% versus 33.2%); RedCap certification launched |
| 2024 | First MCS client certified (July); first RedCap product certified (September); NB-IoT NTN support |
| May 20, 2026 | Interoperability testing becomes an active part of GCF Mission Critical Services certification |
Relationship to 3GPP conformance
Section titled “Relationship to 3GPP conformance”GCF, PTCRB and operator programmes all use the 3GPP UE conformance specifications. The three families that matter:
| Domain | LTE specification | NR specification | What it covers |
|---|---|---|---|
| RF transmitter and receiver | 3GPP TS 36.521-1 | 3GPP TS 38.521-1 (FR1) | Power, EVM, ACLR, spurious emissions, sensitivity |
| Radio Resource Management | TS 36.521-3 | TS 38.533 | Mobility, cell selection and reselection, handover, measurements |
| Protocol and signalling | 3GPP TS 36.523-1 | 3GPP TS 38.523-1 | RRC and NAS procedures, layer 2 and 3 conformance |
A test case only counts for GCF once it is validated on a platform and a band and approved by CAG. Which platforms are validated for which test case is held in the DCC, not on the public site, so confirm it with your RTO before booking.
GCF and PTCRB
Section titled “GCF and PTCRB”| Criterion | GCF | PTCRB |
|---|---|---|
| Nature | Non-profit membership organisation (Global Certification Forum Ltd) | Certification forum of wireless operators, administered by CTIA Certification |
| Started | 1999 | 1997 |
| Technical base | 3GPP test cases selected into GCF-CC, plus other bodies (GSMA, oneM2M, TCCA, 5GAA) | 3GPP test cases plus CTIA Certification test plans |
| Declaration | Manufacturer declaration, SDoC principles | PTCRB device or module certification |
| Typical demand | Operators outside North America that reference GCF | North American carriers |
For the North American side, see PTCRB scope and the PTCRB versus GCF comparison.
What operators actually ask: Vodafone and Deutsche Telekom
Section titled “What operators actually ask: Vodafone and Deutsche Telekom”Two operators publish their position, and they differ:
| Operator | What its documents say about GCF |
|---|---|
| Vodafone (Connectivity Certification for IoT) | Complete GCF certification of the M2M device (GCF lab test, GCF field trial, device registration with GCF) is a prerequisite; this also applies to modules; GCF certification of the radio module alone is not sufficient. See Vodafone Global IoT acceptance |
| Deutsche Telekom (IoT chipset and module certification) | DT does not require module suppliers to present GCF certification; chipset suppliers submit evidence of passing GCF test cases for layers 1 and 2. A module with GCF can reach Full certification, without it Limited certification. See Deutsche Telekom IoT acceptance |
So "GCF is enough" is wrong for both, and "GCF is always a prerequisite" is wrong for DT. Plan per operator: AT&T, Verizon, Orange and others each publish their own rules.
Step by step, scoping a GCF programme
Section titled “Step by step, scoping a GCF programme”- Pick the membership. Module or chipset: full Manufacturer. End product on a certified module, connectivity not the main function: AMM II. Otherwise full Manufacturer or AMM I.
- Declare the device capabilities. Bands, radio access technologies (LTE, NR SA and NSA, RedCap, LTE-M, NB-IoT, NTN), band combinations and services (VoLTE, eSIM RSP).
- Get the test list. An ACE (mandatory for associate manufacturers) determines the applicable criteria from the current GCF-CC version.
- Check validation. Confirm with the RTO that each test case is validated on its platform and for your bands.
- Run conformance testing in an ISO 17025 RTO within its accreditation scope.
- Run Field Trials with a Field Trial RTO on FTQ networks where the criteria require them.
- Declare and publish. Upload the evidence to the members portal and declare the device certified; operator members are notified.
- Add operator programmes on top, per operator.
For sequencing alongside regulatory work, see the certification timeline and the EU plus US dual certification guides.
Claims the texts contradict
Section titled “Claims the texts contradict”| Common claim (including earlier versions of this page) | What the GCF documents say |
|---|---|
| "GCF issues a certificate to the device" | Certification follows SDoC principles (ISO/IEC 17050): the manufacturer member declares the device certified, after RTO testing and, for associates, ACE assessment |
| "DCC means the rules a device is certified against, versioned per device" | The criteria document is GCF-CC, issued quarterly; the DCC is the database of Work Items, platforms and validations behind it |
| "Field Trials happen on networks selected by GCF" | Networks become Field Trial Qualified when the operator agrees to support manufacturers; GCF lists 14 such networks |
| "Test equipment makers are full members of GCF" | Test labs and test solution vendors join as Observers (EUR 5,000); only operator and full manufacturer members can be elected to the Board |
| "Any GCF member can certify a module" | Modules, chipsets and platforms require a full Manufacturer membership; AMM I and AMM II cannot certify them |
| "An integrator can rely on the module GCF certificate" | GCF offers a reduced process for the end product, but it is still a certification of the end product; Vodafone requires device-level GCF and says module-only GCF is not sufficient |
| "Operators require GCF before their own acceptance" | Deutsche Telekom does not require GCF from module suppliers; GCF status sets Full or Limited certification |
| "Specific Anritsu, Keysight and Rohde and Schwarz callboxes are the GCF platforms" | GCF validates test case and platform combinations in the DCC; the public site does not publish a platform list, so ask your RTO |
| "GCF was founded by operators and manufacturers as a non-profit registered body" | GCF states it has existed since 1999 and is a non-profit membership organisation run through Global Certification Forum Ltd; it does not publish a founder list on these pages |
Common pitfalls
Section titled “Common pitfalls”| Pitfall | How to avoid it |
|---|---|
| Joining as AMM II and then trying to certify a module | Choose the membership by product type first |
| Citing the DCC as the criteria version | Record the GCF-CC version in force at the time of testing |
| Booking a lab outside its ISO 17025 scope | Check the RTO accreditation scope against your test list |
| Forgetting Field Trials | Book a Field Trial RTO and FTQ network time early |
| Treating GCF as operator acceptance | Read each operator document; Vodafone and DT differ |
| Treating GCF as regulatory approval | Plan FCC, RED and national approvals separately |
Further reading
Section titled “Further reading”- PTCRB pillar: scope, procedure and tests
- PTCRB versus GCF: choosing the cellular scheme
- 3GPP RF conformance: TS 36.521 and TS 38.521
- AT&T: carrier homologation after the scheme
- Vodafone Global IoT: device acceptance and eSIM
- Deutsche Telekom: IoT chipset and module certification
- PTCRB tests and PTCRB standards
- spilma glossary: GCF, PTCRB, 3GPP and more
Sources and references
Section titled “Sources and references”Sources & references
- GCF, About the Global Certification Forum, GCF www.globalcertificationforum.org/about.html
- GCF, Organisation (Board, Steering Group, agreement groups, work streams), GCF www.globalcertificationforum.org/about/organisation.html
- GCF, Membership Overview (membership types, privileges and fees), GCF www.globalcertificationforum.org/membership/membership-overview.html
- GCF, Membership Options for device and application vendors, GCF www.globalcertificationforum.org/membership/become-a-member/device-app-vendors/membership-options.html
- GCF, 3GPP Wireless Devices (band coverage as of January 2024), GCF www.globalcertificationforum.org/services/3gpp-wireless-devices.html
- GCF, Certification Services, GCF www.globalcertificationforum.org/services.html
- GCF, Testing (RTO) requirements, GCF www.globalcertificationforum.org/services/rto.html
- GCF, Assessment and Support (ACE), GCF www.globalcertificationforum.org/services/ace.html
- GCF, Field Trial Qualified Networks, GCF www.globalcertificationforum.org/services/field-trial-qualified-networks.html
- GCF Certification, white paper, updated February 2018, GCF www.globalcertificationforum.org/static/uploaded/219a6372-9e9a-4a01-86745b90adeb6b67.pdf
- GCF, New DCC Database Platform Strengthens GCF for the Future (June 20, 2022), GCF www.globalcertificationforum.org/news/blog/new-dcc-database-platform-strengthens-gcf-for-the-future.html
- GCF, 25 Years of GCF: LTE and 5G (2020-2024), GCF www.globalcertificationforum.org/news/25-years-of-gcf-pandemic-powerhouses.html
- GCF, GCF announces first 5G certified device (July 26, 2019), GCF www.globalcertificationforum.org/news/gcf-announces-first-5g-certified-device.html
- GCF, Interoperability Testing for Mission Critical Broadband Certification (May 20, 2026), GCF www.globalcertificationforum.org/news/gcf-launches-interoperability-testing.html
- GCF, Module and Chipset Certifications (public list), GCF www.globalcertificationforum.org/gcf-certified-products/module-and-chipset-certifications.html
- 3GPP, Partners (Market Representation Partners), 3GPP www.3gpp.org/about-us/partners
- 3GPP TS 36.521-1, LTE UE conformance specification, Part 1: RF, 3GPP www.3gpp.org/dynareport/36521-1.htm
- 3GPP TS 38.521-1, NR UE conformance specification, FR1 standalone, 3GPP www.3gpp.org/dynareport/38521-1.htm
- 3GPP TS 38.523-1, NR protocol conformance specification, Part 1, 3GPP www.3gpp.org/dynareport/38523-1.htm
- CTIA Certification, PTCRB Certification, CTIA Certification ctiacertification.org/program/ptcrb-certification/
- PTCRB, official site, PTCRB www.ptcrb.com/
Frequently asked questions
- What is the Global Certification Forum?
- GCF (Global Certification Forum) is a non-profit, membership-driven organisation that has run a certification programme for mobile and IoT devices since 1999. It states that it has over 350 members from mobile network operators, device manufacturers and the test industry. GCF certifies smartphones and feature phones, modules and chipsets, routers and hot spots, tablets and notebooks, IoT devices and wearables against criteria built from 3GPP and other industry test specifications. It is a voluntary industry scheme, not a regulatory approval, and it is a 3GPP Market Representation Partner.
- Is a GCF certificate issued by a third party?
- No. The GCF certification white paper states that GCF certification follows the principles of a supplier declaration of conformity as defined in ISO/IEC 17050. A manufacturer member declares the device certified once all relevant conformance, interoperability and field trial criteria are met and the evidence is uploaded to the GCF members portal. The tests themselves must be run by a GCF Recognised Test Organisation (RTO), and associate manufacturers must use an Assessment Capable Entity (ACE).
- What are GCF-CC and the DCC?
- GCF-CC is the GCF Certification Criteria: the document listing the technical requirements for certifying devices that implement 3GPP technologies. GCF says it is maintained and issued quarterly in line with 3GPP updates. The DCC is the database behind it, which tracks Work Items, test platforms and test case validations; GCF has called it both the Device Certification Criteria database and the Device Conformance Criteria tool. In June 2022 GCF reported more than 8,400 validated test cases in more than 1,800 Work Items.
- Which GCF membership do I need to certify a module or an IoT product?
- Modules, chipsets and reference platforms require a full Manufacturer membership (EUR 10,000 a year on the GCF fee table). A fully integrated IoT end product can be certified with a full Manufacturer or an Associate Manufacturer I membership (EUR 10,000). An IoT end product where cellular connectivity is not the main function and comes from a GCF-certified module can use an Associate Manufacturer II membership (EUR 5,000), which cannot be used for phones, modules, platforms or chipsets.
- What are GCF Field Trials?
- Field Trials are the part of GCF certification run on live commercial networks, to check interworking in an operational environment. They are defined by the Field Trial and Interoperability Agreement Group (FTAG), which draws on field trial guidelines maintained at GSMA. They take place on Field Trial Qualified (FTQ) networks: operators that agree to support manufacturers. On October 7, 2026 GCF listed 14 FTQ networks, including Deutsche Telekom, Orange France, three Telefonica networks and three Vodafone networks.
- Does an operator accept GCF on its own?
- It depends on the operator, and operator documents differ. The Vodafone vendor questionnaire requires complete GCF certification of the device itself (lab test, field trial and registration with GCF) and says GCF certification of the radio module alone is not sufficient. The Deutsche Telekom process deck states that DT does not require module suppliers to present GCF certification; GCF status decides whether a module reaches Full or Limited certification. Both operators then run their own tests.
- How does GCF differ from PTCRB?
- Both schemes build on 3GPP conformance test cases. PTCRB was established in 1997 by wireless operators and is administered by CTIA Certification; it is the scheme of the North American carriers. GCF is a separate membership organisation with its own criteria (GCF-CC), its own recognised labs and a Field Trial step on live networks. Lab results can often be reused, but each scheme has its own rules on which test cases, bands and platforms count, so check both before planning one campaign.
- How long does a GCF certification stay visible in the public list?
- The GCF public product lists state that only certifications published within the last 5 years are displayed, and only the last 3 years for modules, chipsets and platforms. Only the original certification date is shown publicly. Operator members can see detailed product information, including new and updated certifications, in the GCF members portal.