(1) A technical assistance request:
(ii) if a later time is specified in the request--at that later time; and
(b) unless sooner revoked, remains in force:
(i) if an expiry date is specified in the request--until the start of the expiry date; or
(ii) otherwise--at end of the 90 - day period beginning when the request was given.
(2) If a technical assistance request expires, this Part does
not prevent the giving of a fresh technical assistance request in the same
terms as the expired technical assistance request.