A sided vehicle containing cargo weighing 35,980 lbs must be able to withstand a rearward force of at least:

Note: If the cargo is contained in a sided vehicle, the vehicle structure MUST be strong enough to withstand the forces described earlier.
Forward force: 0.8 g (80%)
Rearward force: 0.5.g (50%)
Sideways force: 0.5 g (50%).