Certification activities in the USA are handled by TCBs. Most test labs either have a separate TCB group, or work with a specific TCB for approvals. You should work with a lab to determine what tests need to be repeated, and take the data. Based on the new data the lab can determine if it is a Class 1 or Class 2. For a Class 2 the TCB will do a filing with the FCC. For a Class 1 you just need to keep the data on hand internally to prove the change was investigated.
[cid:image439490.jpg@6431776C.1BB6A68A] David Schaefer​ Technical Manager Element Materials Technology 9349 W Broadway Ave Brooklyn Park , MN 55445 , United States O +1 612 638 5136<tel:+1%20612%20638%205136> ext. 10461 david.schae...@element.com<mailto:david.schae...@element.com> www.element.com<https://www.element.com/> [cid:image333160.png@4AF050CB.ADA894E2]<https://www.linkedin.com/organization-guest/company/element-materials-technology?challengeId=AQFf9AemZ4SobwAAAXOQwivOsnkHiTt2ByoCkOxVQjOGOjRlivicVgYlN1dz5QXjId9bpa0keWzfVxhl8KPj78uD6-S6nfqRsg&submissionId=e49e0dc0-96a3-2516-27fa-ee2e8c42b177> [cid:image439401.png@6BA00905.6FD1FCB6]<https://twitter.com/ElementTesting/> [cid:image942733.png@1540D0F8.60649E36]<https://www.instagram.com/elementtesting/> [cid:image077280.png@866A6847.6767A7AC]<https://www.youtube.com/c/ElementTesting> [cid:image873315.jpg@A94560F1.CC1DFEA7]<https://elementmaterials.eu.qualtrics.com/jfe/form/SV_3xQqm84s6IydI5D> From: Brian Gregory [mailto:brian_greg...@netzero.net] Sent: Thursday, August 10, 2023 10:01 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Necessary Lab accreditations, class 2 permissible change CAUTION:This email originated from outside of Element Materials Technology. DO NOT click links or open attachments unless you recognize the sender and know the content is safe. Please contact IT Service Desk if you are in any doubt about this email. Yes, we increased the Y-Caps to get more margin. And we did! So, to qualify for a Class 1 permissive change, we'd need to show before & after data ? Applying for a Class 2 permissive change, means FCC will look only at the latest data to be sure it passes? Colorado Brian ---------- Original Message ---------- From: John Woodgate <j...@woodjohn.uk<mailto:j...@woodjohn.uk>> To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Necessary Lab accreditations, class 2 permissible change Date: Thu, 10 Aug 2023 00:02:42 +0100 What are you changing about the Y-caps? If it's just a new supplier and the caps conform to the required component standard, there is no degradation. Reducing he capacitance would be a degradation for EMC but not for safety. Who determines the class is the person who has all the necessary data. The test house of surveillance authority check the decision. On 2023-08-09 23:20, Brian Gregory wrote: Hello EMC experts, A question came up today about filing new results to FCC for our legacy product. 1. If the filing is only for FCC, then the lab providing the report does not need A2LA accreditation, 2. If the filing is for a safety report, then the lab does need A2LA accreditation. Have I got that right? We're filing some small board changes, including Y-caps and can't figure out if this is a Class 2 permissible change, defined as: " includes those modifications which degrade the performance characteristics as reported to the Commission" 3. How or who determines if our change is Class 2 (degraded performance) or Class 1? We think the results are better, but it's not like we got uniformly more margin across the board. Thanks! Colorado Brian 720-450-4933 ________________________________ This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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