Military

The guidelines below should be followed in reviewing the Hardness Matrices:

1. The Tank and Vehicle Hardness Matrices are to be evaluated separately; that is, a hardness factor of 5 for a tank is not equivalent to a hardness factor of 5 for a vehicle.

2. A hardness factor of 5 represents the hardest (i.e., most armor or pretection) while a hardness factor of 1 represents the lowest level of protection within a given matrix.

3. The relative hardness factors assigned to each tank or vehicle aspect represents "reasonable" unclassified values.

4. The generation of more than 5 hardness factors per matrix is not recommended in that the data may tend to approach actual classified values.