The FAA has restrictions for second in commands when conducting certain operations under Part 135 (notably, landing when more than 60% of the runway is required) and the SIC has less than 100 hours in type specified in 14 CFR 135.4(a)(3):
(3) Pilot operating limitations. If the second in command of a
fixed-wing aircraft has fewer than 100 hours of flight time as second
in command flying in the aircraft make and model and, if a type rating
is required, in the type aircraft being flown, and the pilot in
command is not an appropriately qualified check pilot, the pilot in
command shall make all takeoffs and landings in any of the following
(i) Landings at the destination airport when a Destination
Airport Analysis is required by§ 135.385(f); and
(ii) In any of the
(A) The prevailing visibility for the airport is
at or below3/4 mile.
(B) The runway visual range for the runway to be
used is at or below 4,000 feet.
(C) The runway to be used has water,
snow, slush, ice, or similar contamination that may adversely affect
(D) The braking action on the runway to be used
is reported to be less than “good.”
(E) The crosswind component for
the runway to be used is in excess of 15 knots.
(F) Windshear is
reported in the vicinity of the airport.
(G) Any other condition in
which the pilot in command determines it to be prudent to exercise the
pilot in command's authority.