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The three values are then multiplied together for each rule. This product provides a measure that can be used in prioritizing the application of the rules. These products range from 1 to 27, although only the following 10 distinct values are possible: 1, 2, 3, 4, 6, 8, 9, 12, 18, and 27. Rules and recommendations with a priority in the range of 1-4 are Level 3 rules, 6-9 are Level 2, and 12-27 are Level 1. As a result, it is possible to claim Level 1, Level 2, or complete compliance (Level 3) with a standard by implementing all rules in a level, as shown in the following illustration:
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