May 01, 2018 22:06 Updated Follow The actuarial survey form must be submitted to INPRS four months before the desired effective date to join. Related articles What is an actuarial survey? What is an actuarial study? I am an employer. Where can I find the Public Employees’ Retirement Fund (PERF) Hybrid and MyChoice Resolution? What employers can participate in the Public Employees’ Retirement Fund (PERF)?