Flight Safety,
The H-92 allows higher gross weight with some modifications to the fuselage structure, and use of dual engine military hover performance rather than single engine civil performance standards. The aircraft are otherwise quite similar, as the "civil" S-92 actually has a great deal of military qualified hardware, adapted from the Black Hawk.
The market will tell us if civil users want the higher gross weight, if so we will provide it. With up to 26 passengers or so, the civil aircraft can go 460 NM with Cat A and Jar reserves while still below the 26,150 S-92 weight.
Current plans call for qualifying the 28,300 pound GW to FAR/JAR amendment 45 (I said I would check and it is amendment 45 that the S/H-92 uses as its qualification basis.)