The two FCC authorisation routes carry very different obligations, and the one people discover late is that a Supplier's Declaration of Conformity requires a US-located responsible party.
There are two routes to FCC equipment authorisation, and choosing between them is not simply a question of cost. They place the obligation on different parties, and one of them cannot be satisfied by a foreign manufacturer at all.
The two routes
Supplier's Declaration of Conformity (SDoC) is a self-declaration. Nothing is filed with the FCC, no FCC ID is issued, and testing does not have to be at an FCC-recognised accredited laboratory — though the responsible party must hold the data. Most non-transmitting digital devices under Part 15 Subpart B may use it.
Certification is an application through a Telecommunication Certification Body, resulting in a published grant and an FCC ID. It is mandatory for anything that intentionally transmits — Wi-Fi, Bluetooth, LoRa, RFID, remote controls — and testing must be at an accredited, FCC-recognised laboratory. RF exposure evaluation attaches here.
The obligation people find out about late
For SDoC, the responsible party must itself be located in the United States. A foreign manufacturer cannot hold that role. A US importer or affiliate has to take it on — along with the compliance liability that comes with it.
This matters commercially far more than it sounds. We have watched a launch stall because the US distributor, presented with the SDoC responsible-party role late in the process, read what it actually meant and declined. They were right to. The obligation is real and it sits with them.
For Certification, a foreign applicant may hold the grant, but must designate a US Agent for Service of Process, under an agreement signed by both parties, maintained for at least a year after marketing or importation permanently ceases. That is a lighter arrangement, and it keeps the grant in your name rather than your distributor's — which matters if the distribution relationship ever changes.
Route selection, in other words, is partly a commercial decision about where liability sits and who owns the authorisation. It should be made deliberately at the start, not defaulted into because SDoC looked simpler.
A newer trap: who tested it
Since September 2025, FCC rules restrict reliance on test laboratories, certification bodies and accreditation bodies owned or controlled by specified prohibited entities. The restriction applies to both routes, not just Certification.
The practical consequence is that an inherited test report — from an acquisition, a contract manufacturer, or simply a file that has been sitting in a drive for a few years — may no longer be something you can rely on, through no fault of the product. If you are about to build a US submission on existing data, check the laboratory's current status before you build on it.
And FCC authorisation is not the whole job
FCC covers radio and interference. It says nothing about electrical safety. The United States has no federal safety mark, but NRTL listing under the OSHA scheme — UL, Intertek (ETL), CSA, TÜV and others — is legally required for equipment used in workplaces and is effectively required everywhere else, because the local authority having jurisdiction, retailers and insurers will ask for it.
Then, depending on the product: Department of Energy certification filed in CCMS, FTC EnergyGuide labelling, separate California Energy Commission listing before you may offer the product for sale in that state, CPSC certificate data now filed electronically at entry, and Proposition 65 warnings.
None of those are difficult individually. They are simply separate, administered by different bodies, and each one can block lawful sale on its own.
This article states the position as at 9 September 2026. Regulatory requirements change, and it is general information rather than advice on a specific product. We confirm the instrument and the standard edition in force at the time of each project.