pilotinsky
It is exactly as it says - 30 days is the waiting period.
Per the AFSP website:
Candidates in Categories 1 and 2 are required to wait until Permission to Initiate Training from AFSP, or until the applicable waiting period has expired, before commencing training. The waiting period for Category 1 is 30 calendar days after AFSP has received all of the required information, including fingerprints and the fee.
On average training is typically approved about 10 days after the fingerprints are submitted for a Cat 1 submission.