That's what I was trying to ask, I just didn't know how... So if I'm interpreting this right, there must be some fabricator's who DON'T have this UL logo stamp thing, and there are materials that DON'T meet UL flammability requirements? Putting the UL safety certification subject to the side for a moment (not talking about that), is it the materials that are UL rated? or the fabricator has a UL rating? or both? Jack . On Thu, 24 Mar 2011 09:29:14 -0700, Paul Edwards <paul@SURFACE- ART.COM> wrote: >Don brings up a good point... > >There is the UL registered PCB fabrication process... then there is the UL listed/registered product... > >Some organizations will request PCBs to be built with a UL registered process firm as a method to completely certify that in the end they will have a UL listed/registered product after the completion of the UL product testing. Since PCB fabrication processes affect the reliability of the PCB which is integral to the overall product reliability and safety, then the PCB fabrication process can be considered as part of the overall product design, and would therefore be subject to review... > >BUT this PCB assembly process registration doesn't make the PCB a UL registered component as some people hope it will... For the PCB to get that the PCB itself must undergo design review and testing... > >Paul > >Paul Edwards >Process/Quality Engineering >Surface Art Engineering --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/ContentPage.aspx?Pageid=E-mail-Forums for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------