FCC Rules, 47 CFR Part 15 Subpart B - Unintentional Radiators (equipment authorization by Supplier's Declaration of Conformity or certification)
Unintentional radiators, i.e. devices that by design use digital logic or radio-frequency signals inside the product (or send RF by conduction over wiring) without intending to emit RF wirelessly, must be authorized before marketing.
Market: United States. Legal basis: 47 CFR Part 15 Subpart B (15.101-15.109), with 15.19, 15.21, 15.105 and 47 CFR Part 2 Subpart J. The table shows what the official pages state, with the wording and the date we read it. A row marked "Not stated" means the pages we read do not say; it does not mean there is no rule.
What the official pages state
| Question | What the official page states | Source |
|---|---|---|
| What it covers | Unintentional radiators, i.e. devices that by design use digital logic or radio-frequency signals inside the product (or send RF by conduction over wiring) without intending to emit RF wirelessly, must be authorized before marketing. Matches products that: mains power or battery power. Further conditions: Scope is defined by technical tests: 47 CFR 15.3(k) defines a digital device as one using timing signals above 9,000 pulses per second with digital techniques; 15.103 exempts listed devices (e.g. devices used exclusively in vehicles, in appliances, certain medical devices, and battery-only devices whose highest frequency is below 1.705 MHz); receivers tuning only outside 30-960 MHz are exempt from the technical provisions (15.101(b)). Radio transmitters fall under Subpart C instead. Visitor answers cannot settle these. Official wordingAn unintentional radiator (defined in Section 15.3 (z)) is a device that by design uses digital logic, or electrical signals operating at radio frequencies for use within the product, or sends radio frequency signals by conduction to associated equipment via connecting wiring, but is not intended to emit RF energy wirelessly | www.fcc.gov read 2026-10-03 |
| How conformity is shown | Depends on the product or standards (see the note) 15.101(a) Table 1: most unintentional radiators (including Class A/B digital devices and peripherals) may use SDoC or certification; scanning receivers, radar detectors and Access BPL require certification. Official wordingExcept as otherwise exempted in §§ 15.23 , 15.103 , and 15.113 , unintentional radiators shall be authorized prior to the initiation of marketing, pursuant to the procedures for certification or Supplier's Declaration of Conformity (SDoC) given in subpart J of part 2 of this chapter , as follows: | www.ecfr.gov read 2026-10-03 |
| Mark and declaration | FCC compliance statement on the device (15.19(a)); optional FCC logo for SDoC devices; FCC ID applies only to certified devices; Supplier's Declaration of Conformity (with compliance information statement) or grant of certification Label wording for most devices is the 15.19(a)(3) statement; small devices may carry it in the manual and on packaging or a removable label (15.19(a)(5)). The FCC logo for SDoC devices is voluntary (2.1074(b)). Official wordingAll other devices shall bear the following statement in a conspicuous location on the device: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received | www.ecfr.gov read 2026-10-03 |
| Official fee | Not stated no fee stated for SDoC in the saved pages; SDoC is not filed with the FCC (FCC ID page) | — |
| Steps and documents | Included in the $49 checklist. See the checklist | — |