FCC Part 15 Compliance for Electronics from China
1 resources tagged with "Part 15"
This tag covers FCC Part 15, the US rule governing unintentional and intentional radio-frequency emitters — the path nearly every wireless electronic device imported from China must clear. It splits into SDoC (Supplier's Declaration of Conformity) for unintentional radiators and full TCB certification for intentional radiators like ESP32 or nRF52 modules. Using a pre-certified module with modular approval lets you inherit its FCC ID and skip a full retest, which is the single biggest cost and timeline saver.
When you actually deal with Part 15, the pitfall is assuming a Chinese factory's 'FCC certified' claim covers your finished product — module certification doesn't automatically transfer if you change antenna or layout. We confirm the FCC ID, grant conditions, and whether your integration stays within the modular approval scope.
Wiki (1)
FAQ
What's the difference between Part 15 SDoC and TCB certification?
SDoC is a self-declaration for unintentional radiators (most digital devices) and is cheaper. Intentional radiators with radios need full certification through a TCB (Telecommunication Certification Body), which issues an FCC ID.
Can I reuse an ESP32 module's FCC certification?
Yes, via modular approval — you inherit the module's FCC ID if you follow its integration conditions (antenna type, gain, placement). Deviating from those conditions can void the approval and require retesting.
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