Completing the Glider additional rating with a checkride from either the FAA
or an FAA Rep, (DPE) will count as a Flight Review and covers all ratings
you may have.
Subsequent Flight Reviews may be completed in any aircraft you are qualified
for and it's good for all aircraft. Most instructors (and FSDO) suggest that
the Flight Review be completed in the most complex aircraft you fly. But
there is no legal requirement to do so.

90 day currency for carry of passengers, must be completed in "category and
class", so 3 landings in the last 90 days in ASEL and 1 landing in the last
90 days in gliders.. you can carry pax in the airplane but not the glider..
you need two more glider flights to carry pax in gliders.

BT

"Scott" wrote in message
.. .
Here's a question. I'm a private pilot, ASEL. If I get my glider rating,
will I have to do a separate BFR for each (powered and glider)? If not, is
would it just be a matter of currency (3 takeoffs and landing within past
90 days if I want to take passengers)?

Scott