Although a degree of change in law protection will almost always be required, Contracting Authorities should carefully consider the scope of change in law provisions. The starting point is to define "Change in Law" by agreeing (a) what is law (often termed "Applicable Law"), (b) what constitutes a change in that law, (c) the qualifying date after which such change must have occurred, and (d) foreseeability criteria before that date (i.e. if it was "in the public domain"). These elements are discussed below.