PTCRB certification, step-by-step procedure

Author Hugues Orgitello Last updated 11 July 2026 ~5 min read

PTCRB · Pillar

The PTCRB procedure is structured at two levels: module certification for cellular modules and device certification for products integrating these modules. This page details the actors, the request categories (Initial, Variant, ECO), the chronological process, and interaction with FCC which typically runs in parallel.

Two certification levels

Module certification

For commercial cellular module manufacturers (Quectel, u-blox, Sierra Wireless, Telit, etc.). The module is certified once (Initial Certification, device type Module), is listed in the public PTCRB certified devices database, and receives its TAC / IMEI range.

Steps:

Scope definition (bands, technologies, target operators)
Internal pre-tests
Complete tests at a PTCRB Authorized Test Lab (RF, protocol, OTA, IMS as applicable)
Certification request in the PTCRB certification database (certify.ptcrb.com), test results uploaded by the Primary lab
Review by CTIA Certification and certification award
TAC / IMEI range issuance
Operator-by-operator homologation (AT&T Network Ready, Verizon Open Development, etc.)

Typical timing: several months for a complete 4G module, longer for a 5G module (indicative).

Device certification on a certified module

For integrators using a PTCRB-certified module in their final product. IoT devices go through IoT Network Certified (INC), the streamlined path administered by CTIA Certification; notebooks and tablets follow a reduced PTCRB path. The device campaign validates:

Correct module integration in product (antennas, supply, thermal)
OTA performance in final configuration (TRP / TIS)
Radiated spurious emissions and SIM electrical tests
Final radio configurations of the product

Steps:

Selection of certified module and obtaining its documentation
Internal OTA pre-tests
Tests at a PTCRB Authorized Test Lab (mainly radiated tests)
Certification request in the certification database (device type incorporating a certified module)
Review and certification award, listing in the public database

Typical timing: substantially shorter than a complete module certification.

Process actors

PTCRB Authorized Test Labs

Testing must be performed by a PTCRB Authorized Test Lab (ATL): Primary labs (fully authorized) can sponsor Associate labs working under their supervision. The up-to-date directory is published on ptcrb.com. Groups active in this market include:

Lab group	Notes
Element Materials Technology	Multiple PTCRB lab awards
Bureau Veritas	Includes the 7layers labs
Cetecom Advanced	Cellular specialist
SGS	Global network
Sporton International	Taiwan-based, very active on PTCRB
SEQAL, WE Certification	Recent PTCRB lab award recipients

Labs use test platforms validated through the PVG process (Anritsu, Rohde & Schwarz, Keysight).

PVG and the certification review

The PVG (PTCRB Validation Group) is the technical consultation body of the PTCRB Working Group: it validates test cases, qualifies test platforms, and maintains the test case database and the PVG.11 band list. It does not review individual certification requests.

The certification flow itself is database-driven:

The manufacturer submits a request (categories: Initial, Variant or ECO) at certify.ptcrb.com
The Primary lab uploads the test results and required declarations
CTIA Certification collects and reviews the certification data, invoices the certification fee, and awards certification once all requirements are met

Operators (post-PTCRB)

Once PTCRB certification obtained, each operator typically adds their own requirements:

AT&T: Network Ready program (IoT Network Certified plus the TRENDI network test, via the AT&T IoT portal)
Verizon: Open Development device certification, which accepts PTCRB or GCF as the conformance prerequisite
T-Mobile: IoT device certification via the DICE portal, Validation Lab and Technical Acceptance
Bell / Rogers / Telus: rely on PTCRB, with their own acceptance steps case by case

Final operator homologation typically adds several weeks to months per operator, plus program fees.

IMEI Range, the module's identity

For PTCRB devices, CTIA Certification is the IMEI Administrator: it receives TAC requests, issues IMEI TACs, and reports allocations to GSMA as a GSMA Reporting Body. IMEI structure (15 digits):

TAC (8 digits) + Serial Number (6 digits) + Check Digit (1)

The TAC (Type Allocation Code) identifies the certified model; its first two digits are the Reporting Body Identifier (01 for PTCRB production IMEIs). One TAC allows 1 million unique units.

For higher volume products, multiple TACs can be assigned to the same module. The manufacturer manages the Serial Number range respecting the Luhn Check Digit formula.

IMEI database (GSMA)

TACs and IMEI ranges are registered in the GSMA TAC database:

https://imeidb.gsma.com/

This database allows operators to verify IMEI legitimacy during network registration. An IMEI not registered in GSMA may be refused by the operator.

Detailed timeline of a complete module certification

For a 4G LTE Cat-M + NB-IoT module covering main US/CA bands:

Month 1   : Scoping + lab selection
Month 1-2 : Internal pre-tests (basic RF, simple OTA)
Month 2   : Lab shipment + technical briefing
Month 3-4 : RF Conformance tests (TS 36.521-1 + -2 + -3)
Month 4-5 : OTA tests (TRP, TIS all bands)
Month 5   : IMS / VoLTE tests if applicable
Month 5-6 : Inter-operability + data throughput tests
Month 6   : File compilation + submission in the certification database
Month 7   : CTIA Certification review + possible corrections
Month 7-8 : Certification award + TAC/IMEI assignment
Month 8+  : Operator homologations (AT&T, T-Mobile, etc.)

Total: typically 6 to 9 months for a complete 4G module (indicative); 5G scopes add several months.

Interaction with FCC

FCC and PTCRB certifications are distinct but complementary. For a cellular module:

FCC validates compliance with radio emission limits (47 CFR Parts 22, 24, 27)
PTCRB validates correct operation on operator networks

Both certifications can be run in parallel. Many tests are shared between FCC and PTCRB (notably 3GPP RF Conformance tests). The same lab can produce reports usable for both submissions, dividing costs by 30-40% versus separate tests.

Modular Approval, reusing certified modules

The use of a PTCRB-certified module in a final product follows a scheme similar to FCC modular approval:

Reuse conditions

The module must be used in accordance with conditions documented in its Integration Guide:

Specified antennas (models, gains, types)
Minimum ground plane
Clean power supply (filtering, stability)
Thermal conditions (operational temperature)
Minimum distance from other RF components

Device identification

Unlike FCC (which requires an FCC ID on the label), PTCRB does not mandate a product marking: certification is recorded in the public PTCRB certified devices database, and the device is identified on the network by its IMEI. The certified module reference and its integration conditions are declared in the certification request.

Reduced device certification

Even with a certified module, the integrator passes a device-level certification (IoT Network Certified for IoT devices) that validates:

OTA tests in final configuration (TRP, TIS)
Radiated spurious emissions while the module transmits
SIM electrical tests
Radio configurations of the final product

Typical cost: a fraction of the cost of complete module certification.

Indicative costs

The laboratory figures below are rough market estimates for budgeting, not published PTCRB fees; only the CTIA Certification fee is official (PPMD V4.1). Request quotes from an authorized lab.

Item	Range
Complete 4G LTE RF Conformance	$20,000 – $50,000
5G NSA RF Conformance	$40,000 – $80,000
5G SA RF Conformance	$60,000 – $120,000
Complete OTA	$15,000 – $40,000
IMS / VoLTE	$10,000 – $25,000
CTIA Certification fee (official, PPMD V4.1)	$12,500 Initial / $3,125 Variant
Operator homologation	$5,000 – $20,000 per operator
Device certification on certified module	$30,000 – $80,000

Typical total for a complete cellular module: $80,000 to $200,000 without operator homologations, more with homologations on several North American operators.

For a device reusing a certified module: $30,000 to $80,000.