Here is the latest info, no it is not required, but it is in the best interest of the NRD to get it done and here is why, and they are going by "quality" and "not quality"
If a person is considered quality and they are submitted with a PQ letter, NRD gets credit for submission when submitted whether they are selected or not.
If a person is considered quality and they are submitted without a PQ letter, get selected, then get PQ letter, then NRD gets credit.
If a person is considered quality and they are submitted without a PQ letter, they are non select NRD gets no credit.
If a person is considered not quality and they are submitted with a PQ letter, NRD gets credit only if they are selected.
If a person is considered not quality and they are submitted without a PQ letter, get selected, then get PQ letter, then NRD gets credit.
Here is an example recruiter one submits 10 quality kits none with PQ letter, one is selected he gets credit for 1 but recruiter 2 submits 4 quality kits with PQ letters and none are selected, but he is credited with 4, so in the eyes of NRC recruiter 2 did more work.