Hi, I'm asking here for views rather than true legal advice=85.although I know = there are a couple of PIClisters who are quite FCC-savvy, so they might be = able to offer a definitive answer. I understand that when certifying a device under Part 15 as an intentional = radiator (our is in the 2.45GHz spectrum -- Bluetooth Low Energy, but we're= using a baseband chip and RF stage rather than a module) changing or addin= g components is an absolute no-no except if they're 'direct equivalents'. N= o problem there. But what about if we were to get a device certified that had, say, sensor A= , sensor B, and sensor C loaded on the board and then *remove* one or two o= f those sensors for a specific application or market? If the whole device/a= ssembly is certified, can we do that? I will ask the testing house too, but wanted to see what y'all thought as w= ell -- I'm sure the testing house will say "you should get each variant tes= ted" :) Thanks! -m --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .