A corrigendum is typically published to correct an error that was "inadvertently introduced either in drafting or in printing and which could lead to incorrect or unsafe application" of a standard. Corrigenda are not published to correct errors that would have no bearing on application of the standard.
So you could say that it is immediately mandatory. Steve Leitner From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Monrad Monsen Sent: Sunday, April 29, 2012 9:50 PM To: Helge Knudsen Cc: 'Jones, Richard (Richard)'; EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: EMC Standard Listings with /AC in the suffix You are right. The AC:2011 is a corrigendum. There appear to be a couple of standards that have corrigendums for information technology equipment (ITE) family standards. However, do the manufacturers Declarations of Conformity (DOC) need to list the corrigendum? Specifically, would the DOC need to list the below listings? EN55022:2010 + AC:2011 EN60950-1:2006+A11:2009+A1:2010+A12:2011+AC:2011 Also, I notice that there is no "date of cessation of presumption of conformity of superseded standard" in the listing of harmonized standards. Does this mean that both corrigendums are immediately mandatory? Thanks. Monrad On 4/28/2012 8:01 AM, Helge Knudsen wrote: Hi Rich, This is just a corrigendum. You may get it for free if you make a search on the internet, search for EN55022:2010/AC:2011. Best regards Helge Knudsen Denmark From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Jones, Richard (Richard) Sent: 28. april 2012 13:08 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: EMC Standard Listings with /AC in the suffix Hi Everyone I was looking at the implementation date for EN55022:2010 and noticed that there was another line added underneath showing EN55022:2010/AC:2011 (new) Is this some sort of amendment, I see there are a number of standards with /AC on them . There is no implementation date either I'm sure there is an obvious answer, but I can't see it yet! Rich If it is an amendment what does it contain? Not that I'm cynical J but I've seen some which you pay serious money for and they're nothing more than a cover sheet! - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
