NOTE: We have received several questions concerning unannounced FOR RECORD APFTs. This response was posted in a previous Q&A but was buried deep in a chain of responses. It was important enough that I thought we should give the response its own Q&A for clarity.
If the Commander requires more than two APFT test a year there is no separation requirement. The purpose of the 4 month separation clause is to prevent Soldiers from taking advantage of the system and lets say a Soldier takes 2 Record APFTs in 3 months then the Soldier does not have to take a PT for at least another 10 months. Basically the separation clause is designed to ensure that Soldiers remain physically fit during the entire year.