Technically, the FCC regulations always apply to all products sold and marketed in the US. The thing is if only a handful of units are made and the units do not produce noticeable amounts of EMI, the chances of getting caught are low. The Chinese manufactures/sellers are exempt from US law, its the resellers in the US (who typically know nothing of the FCC regulations) who are liable for deficiencies of the products they import. Most products produced where I work seem to fall into the exempt category of the FCC regulations (appliances, automotive, and industrial). On Sun, Oct 18, 2015 at 2:55 PM, Tom wrote: > Vasile, > > Do you know if you do a one off is the regulations still apply? > > Thanks, > Tom > > -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf = Of > embedded systems > Sent: Wednesday, August 26, 2015 3:03 PM > To: Microcontroller discussion list - Public. > Subject: Re: [PIC] ,oe frequency RC oscillator > > Do you manufacture in large series? > For small number of things you don't need any approval. See the Chinese > stuff... > > Vasile > > On Wed, Aug 26, 2015 at 7:45 PM, Ian Thompson-Bell > wrote: > >> I recently read an article that said devices with clock frequencies >> below 9KHz do not need FCC or European EMC emissions approvals. I have >> a number of non-critical applications that could run at a clock >> frequency of say 8KHz. >> Are >> PICs with RC oscillators viable at this low a frequency? Are there any >> special issues I should be aware of? >> >> Cheers >> >> Ian >> >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/cha= nge > your membership options at http://mailman.mit.edu/mailman/listinfo/piclis= t > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 Jason White --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .