When is an Instrument Proficiency Check required?
Under 14 CFR § 61.57(d), once you have been out of instrument currency for more than six calendar months — that is, you have not met the recent instrument experience of § 61.57(c) for that long — you may no longer regain currency on your own with a safety pilot. You must complete an Instrument Proficiency Check with a CFII or other authorized evaluator before you can act as pilot in command under IFR again.
