Short answer
In the United States, radio frequency devices require FCC equipment authorisation before they may be marketed. This includes intentional radiators such as Wi-Fi, Bluetooth, and cellular devices, and unintentional radiators such as most digital electronics. The authorisation route, Supplier Declaration of Conformity (SDoC) or Certification, depends on the device type and FCC rule part.
What is FCC equipment authorisation?
The Federal Communications Commission regulates radio frequency devices under the Communications Act. Equipment authorisation is the process by which the FCC verifies that a device complies with the technical requirements before it can be legally marketed in the US.
"Marketing" is broadly defined. It includes sale, lease, import, and shipment. A device cannot be imported for sale without the required authorisation.
Which products are covered?
FCC rules distinguish intentional and unintentional radiators:
Intentional radiators are devices that deliberately generate radio frequency energy to communicate. Examples:
* Wi-Fi routers, access points, and client devices * Bluetooth speakers, headphones, and peripherals * Cellular phones, tablets, and IoT modules * Zigbee, LoRa, and other wireless sensors * Remote controls using radio frequencies
Unintentional radiators are digital devices that generate radio frequency energy as a byproduct of operation. Examples:
* Computers, monitors, and peripherals * LED lighting with digital drivers * Industrial controllers with microprocessors * Most mains-powered devices containing digital circuitry
If the product contains a microprocessor operating above 9 kHz, it is likely an unintentional radiator within Part 15 scope.
What are the authorisation routes?
| Route | Applies to | Process |
|---|---|---|
| Supplier Declaration of Conformity (SDoC) | Most unintentional radiators | Manufacturer tests to the standard and declares conformity; no FCC filing |
| Certification | Intentional radiators and specified devices | Testing by an accredited lab, application through a Telecommunications Certification Body (TCB), FCC ID granted |
Certification is the more rigorous route. The device receives an FCC ID that must appear on the product labelling. The ID is searchable in the FCC equipment database.
What testing is required?
Testing must address the applicable technical requirements, typically:
* Radiated emissions within the permitted limits * Conducted emissions on power lines * Frequency stability and occupied bandwidth for transmitters * Specific absorption rate (SAR) or RF exposure evaluation where applicable
Testing for Certification must be performed by an FCC-recognised accredited laboratory. For SDoC, the responsible party must use appropriate test methods, and market surveillance can verify compliance.
What labelling is required?
Certified devices must display the FCC ID. Part 15 devices must carry the compliance statement that the device complies with Part 15 of the FCC rules and that operation is subject to conditions including that it must accept any interference received.
The FCC ID and statements must be on the product or, where the device is too small, in the user manual and on the packaging per the labelling rules.
How does FCC relate to other US requirements?
FCC authorisation addresses electromagnetic compatibility and radio performance. It does not address electrical safety, which is typically demonstrated through listing by a Nationally Recognized Testing Laboratory (NRTL) such as UL or ETL, often required by retailers and electrical codes rather than federal law.
A wireless consumer product sold in the US commonly needs both FCC authorisation and safety listing, plus CPSC compliance for general product safety.
Checklist: FCC readiness
* [ ] Classify the product as intentional radiator, unintentional radiator, or both * [ ] Identify the applicable FCC rule parts and their technical requirements * [ ] Determine the authorisation route: SDoC or Certification * [ ] For Certification, engage an accredited lab and a TCB early * [ ] Plan labelling with the FCC ID and Part 15 statements * [ ] Address RF exposure evaluation where the device operates near the body * [ ] Keep test reports and declarations in the compliance file
How do modular approvals work?
Many products incorporate pre-certified wireless modules. A module with FCC certification can simplify the host product authorisation, but the rules are specific:
* The module grant notes any limitations, such as approved antenna types or host configurations * The host product must follow the module integration instructions; deviations void the reliance on the module grant * The host may still require its own authorisation for unintentional radiator emissions from the digital circuitry * Labelling must reflect the correct FCC IDs: the module ID and, where required, the host ID
Single-modular and split-modular approvals have different integration rules. Read the grant conditions before designing the host product around a module.
What about devices with multiple radios?
Modern products often combine Wi-Fi, Bluetooth, cellular, and other radios. Each transmitter must comply with its applicable rule part, and the combination must be evaluated:
* Simultaneous transmission must be assessed for RF exposure where the device operates near the body * The host must address intermodulation and spurious emissions from the combination * Each certified module grant must be valid for the integrated configuration
The certification application should describe the complete radio configuration as marketed. Adding a radio after certification requires reassessment.
How does FCC enforcement work for imports?
The FCC coordinates with US Customs and Border Protection on import surveillance. Devices without required authorisation can be refused entry. The FCC also conducts market surveillance, including purchases of products offered online, and can impose forfeitures for violations.
For importers, the practical requirements:
* Ensure the FCC ID is properly labelled before shipment * Keep the authorisation records available for customs queries * Verify that the shipped configuration matches the authorised configuration; firmware or hardware changes after authorisation create risk * For SDoC products, maintain the test records supporting the declaration
The FCC equipment database is public. Competitors, customers, and authorities can all verify whether a marketed device holds the claimed authorisation.
How does the Supplier Declaration of Conformity process work?
The SDoC procedure allows the responsible party to test the product and declare conformity without FCC filing. The requirements:
* Testing must be performed for the applicable rule part, using recognised procedures * The responsible party must be located in the US * The declaration must identify the product and the standards applied * Records supporting the declaration must be retained and produced on request * The product must carry the required labelling and the SDoC compliance information
SDoC is not self-certification without evidence. The test records must exist and must support the declaration. An SDoC without underlying test data is a violation.
Importers using SDoC should obtain the test records from the manufacturer and confirm the US responsible party arrangement before importing. The importer may itself act as the responsible party if it takes on the obligations.
What labelling does the FCC require?
FCC labelling requirements vary by authorisation type:
* Certified devices must display the FCC ID in the format specified in the rules. The ID links to the grant in the FCC database. * SDoC devices must carry the compliance logo and information as specified for the rule part. * All devices must carry any required warning statements for the rule part, such as the interference statement for Part 15 devices.
The label must be permanently affixed and legible. For small devices where the label cannot fit, the rules provide for display in the manual or on the packaging, but the conditions are specific and must be followed exactly.
Electronic labelling (display on a screen) is permitted for certain device categories under defined conditions. Confirm eligibility before relying on e-labelling.
How should sellers verify supplier FCC claims?
Suppliers sometimes assert FCC compliance without proper authorisation. Verification steps:
- Check the FCC database. Search the claimed FCC ID in the FCC equipment authorisation database. A valid grant should appear with the product details.
- Match the grant to the product. Confirm the grant covers the product configuration being purchased, including model numbers and radio specifications.
- Review the grant conditions. Note any limitations on antennas, host configurations, or operating conditions.
- Request the test reports. For SDoC products, obtain the underlying test data.
- Confirm no modifications. Verify that the product as supplied matches the authorised configuration.
A supplier unable or unwilling to provide the FCC ID or test records should be treated as a compliance risk. Build verification into the supplier qualification process rather than discovering issues at the border.
What are the consequences of marketing without authorisation?
Marketing a device that requires FCC authorisation without obtaining it exposes the seller to enforcement action. The FCC has imposed forfeitures for marketing uncertified devices, with amounts reflecting the scale of the violation and the conduct involved.
Beyond FCC action, the commercial consequences include:
* Customs refusal of shipments identified as non-compliant * Marketplace delisting where platforms enforce authorisation requirements * Contractual liability to distributors and retailers who relied on the compliance representation * Reputational damage with commercial customers who verify authorisation
The FCC equipment database makes verification straightforward for any interested party. Sellers should assume that significant commercial customers and competitors will check.
For startups and small importers, the authorisation cost can seem disproportionate to early revenues. But the cost of enforcement, including stopped shipments and legal fees, invariably exceeds the cost of doing the authorisation correctly from the start.
How do you stay current with FCC rule changes?
FCC rules evolve through rulemakings that can change authorisation requirements, test procedures, and labelling. A monitoring approach:
* Track FCC rulemakings affecting the rule parts relevant to your products through the FCC Electronic Comment Filing System * Review test laboratory guidance, as labs are often the first to flag practical changes in FCC expectations * Reassess products when rule changes take effect, particularly where transition periods apply * Update internal checklists and supplier requirements to reflect the new rules
For importers with stable product ranges, an annual review of the FCC rules against the product portfolio is sufficient. For sellers introducing new wireless products frequently, monitoring should be continuous.
Sources
* FCC equipment authorization procedures: https://www.fcc.gov/general/equipment-authorization-procedures * 47 CFR Part 15, Radio Frequency Devices: https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15 * FCC OET Knowledge Database: https://apps.fcc.gov/oetcf/kdb/index.cfm