Hello reddoggoose, thank you for including this information, is there a particular place that you found this, such as a chart, publication, website? The Fema stuff is somewhat new to me, not necessarily the awareness that it applies, but more so how it applies with regard to filler metals, requirements, situations for application, and some of the other particulars. Appreciate the information. Best regards, aevald FOOTNOTE: I did google FEMA 353, came up with a bunch of interesting information. Since I don't work so closely with all of this anymore I hadn't realized quite the scope of it's impact. I am on the West coast so this does have a considerable effect on much of the work that goes on in our area and the region. My google hit was from Lincoln and they have quite a bit of information for FEMA 353, but I also gathered that this information was specific to Lincoln filler metals and doesn't include any competitors electrodes.