CS 22.23 Load distribution limits
CAA ORS9 Decision No. 1
(a) The ranges of weight and c.g. within which the sailplane may be safely operated must be established and must include the range for lateral c.g. if possible loading conditions can result in significant variation. Compliance must be shown over the lateral c.g. range and over a longitudinal c.g. range between the foremost limit of the c.g. and 1% of the standard mean chord or 10 mm, whichever is greater, aft of the aftmost limit of the c.g.
(b) The c.g. range must not be less than that which corresponds to the weight of each occupant, including parachute, varying between 110 kg and 70 kg, without the use of ballast as defined in CS 22.31(c).