As stated in OPS 1.800, it is not a requirement that aircraft must have break-in areas, but that
if the aircraft is designed having such specific emergency points then they must be marked according to the requirements.
Not all aircraft types and models are designed with a specific "weak point" introduced on the fuselage structure for this purpose; and there is no requirement to necessarily do so. For this reason, there may be no specific area for break-in designated and aircraft can be operated, subject to specific national regulations, without any break-in markings.
This is one of the points that should be fully clarified for each aircraft being operated in an operational compliance checklist, for example:
http://www.caa.co.uk/docs/33/fod200911.pdf
http://www.caa.co.uk/docs/1196/20081...Compliance.pdf