14 CFR 195(d)(6) makes no mention of instrument rating in connection with an Instrument Proficiency Check (IPC). 14 CFR 57(d)(2) makes mention of those permitted to provide IPCs, one of which is an “authorized instructor” in 57(d)(2)(iv). 14 CFR 61.1(b)(2) defines an authorized instructor as a Ground Instructor or a CFI, again with no mention of an instrument rating. There are plenty of instances where an instrument rating is explicitly required, 195(c), for example. Barring some unknown code, it appears a regular CFI is permitted to provide an IPC. Anyone able to clear the fog?