I was told since I am still employed opting out was not an option. I was under the impression that legally no organization can make you continue with a 401.
If you are a state employee, you are automatically a member of PERA and contribute to that instead of social security. If you want to contribute to a 401k, you would be contributing to PERA's 401k instead of a private 401i. As a former judge and teacher, PERA is a much safer investment than social security and a private 401k "at present."
The information provided in this answer does not create an attorney-client relationship and is not considered to be legal advice.
Take a look at the plan's summary plan description. It will describe the rules for participation and contribution to the plan. If you are permitted to stop contributing then the rules in this document will describe the frequency in which you can elect to stop those contributions.
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