Which statement about the MP/H rules is true?

The correct statement regarding the MP/H rules is that they are used for cases diagnosed between January 1, 2007, and December 31, 2017. The MP/H (Multiple Primary and Histology) rules provide guidance for how to determine whether multiple tumors in a single patient should be counted as separate primaries or as a single primary, which is crucial for accurate cancer reporting and statistics.

While it is true that the MP/H rules clarify how multiple primary tumors are classified, they do not determine case reportability. Case reportability refers to whether a cancer case must be reported to a cancer registry based on specific criteria or guidelines, which are separate from the MP/H rules' focus on the classification of primary tumors. Understanding the specific role of the MP/H rules helps ensure proper compliance with registries' reporting requirements.