Based on our student surveys, it usually takes around 4-6 weeks to receive approval from PSI. That said, approval times can vary, and since PSI and the MA Real Estate Board handle the paperwork and testing we're not able to guarantee a turnaround time on their behalf.
If you have been waiting longer than 6 weeks for your approval, please contact PSI to inquire about your application, since you ought to have heard back about it. They should be able to update you on its status!