Yes, there are timeframes.
You have 120 days to apply for review with your agency.
'When' the 120 days starts depends on what you want reviewed. The 120 days may be calculated from the date of:
Your agency's review of these matters is called an agency primary review.
If you are dissatisfied with the outcome of this primary review, you may apply to the Merit Protection Commissioner for review.
When we review decision already reviewed by agencies, it is called a Merit Protection Commissioner secondary review.
You have 60 days to lodge the secondary review.
The 60 days starts from the date your agency advised you of the primary review outcome.
It is important to submit your review application within the time limits (Regulation 5.23).