I apparently didn't think my question out. I am throroughly familiar with the positions, but we are primarily certifying in 3G(UP) & 4G positions. I did notice that in Table 4.12 that FCAW specification is not an essential variable and was hoping that my interpretation was correct. I guess I would have to assume then that if the EOR is specifying it to be a seismic weld then, the weld must be certified on a seismic wire (e.g. NR-232 or NR-233). Otherwise, if nothing is specified by the EOR, if they've got FCAW certs, they are good for any FCAW electrode...is that a safe assumption, in your opinion?