In the context of EHP
The EHP SIMERP does not satisfy the employer mandate by itself - it is not a group health plan. Employees enrolled in the SIMERP must also be enrolled in a separate qualifying group health plan that does satisfy the mandate.
The ACA requirement that employers with 50+ full-time-equivalent employees offer affordable, minimum-value health coverage to substantially all full-time employees or face penalties.
The EHP SIMERP does not satisfy the employer mandate by itself - it is not a group health plan. Employees enrolled in the SIMERP must also be enrolled in a separate qualifying group health plan that does satisfy the mandate.
Definitions only do so much. A live walkthrough of how all of this connects in your business takes about half an hour.