Some of the design codes within Steel Designer allow the user to modify the value of the efficiency below which the design checks on a member have deemed to of passed.  This value is known as the Acceptance Ratio.  Any design check on the member for which the efficiency exceed this value will be marked as a failed check. 

The Acceptance ratio for a particular member is set via the Options command in the Design menu.  The initial value of the Acceptance Ratio for all members is 100%.