I can't really say that I understand the FCC rules and regulations about GMRS whether to use or not use, because I have used and I modified radios not authorized for Part 95 use. Right now, I wished I had not made the modification on my YAESU FT-60R, but it's done. However, getting back to using used or new old stock part 90 radios for GMRS shouldn't be a big deal, for three reasons. One, the majarity of those radios pulled from service due to the narrow banding requirements, should be able to be recertified Part 95A / 95E for GMRS. Two, I know even used or new old stock unopened can be pricy, but there are some great deals, especially if you are able obtain the programming equipment. Three, the quality of ICOM KENWOOD MOTOROLA and VERTEX can't be found in other price friendly brand, except MIDLAND.