On Sep 3, 9:20*am, Bob Moore wrote:
brian whatcott wrote

It's interesting that the COD can distinguish biennial from biannual,

It dosen't matter....biennial or biannual, they and the abreviation BFR
are all incorrect. The FAA makes a big difference between "every two
years" and "since the beginning of the 24th calendar month......".
The FAA has not used "BFR" since about 1995 as I recall.

FAR Section 61.56
61.56 Flight Review......
(c) Except as provided in paragraphs (d), (e) and (g)
of this section, no person may act as pilot in command
of an aircraft unless, since the beginning of
the 24th calendar month before the month in
which that pilot acts as pilot in command, that
person has—
(1) Accomplished a flight review given in an aircraft
for which that pilot is rated by an authorized
instructor; and
(2) A logbook endorsed from an authorized
instructor who gave the review certifying that
the person has satisfactorily completed the
review.

Bob Moore
Holder of an FAA Flight Instructor certificate
NOT a CFI *

So if one is careful to have their review early in August of 2008 they
may act as PIC until the end of Aug 2010, get their review early in
Sept 2010, be PIC until. . . etc.

Better than saying "Hey, have an instructor make sure you know what
you're doing every couple of years. . .".

The 'annuals' on my airplane sometime happen at 13 month intervals
too. Legalese is some people's first language.

In some states that require an annual automobile inspection if you
present the car to an inspection station in June, a month after the
prior inspection expired, the new sticker will expire in May the next
year. No 'calendar creep' is permitted.