Using a CIR to operate under N.VMC depends on holding a CIR + the required N.VFR experience. Trouble is that a CIR lapses after a year. No renewal --> No CIR --> No N.VFR privileges. Unlike a CIR, a N.VFR rating is permanently valid. A limitation of a N.VFR rating is that it cannot be used for charter operations. It's a PVT & AWK rating only. Using N.VFR procedures for CHTR requires a CIR with N.VFR privileges.
No matter which rating you use to operate under N.VFR you must meet N.VFR recency requirements.
Last edited by Tinstaafl; 6th Apr 2011 at 18:51.