Mental Health Coverage On A Non-Grandfathered Plan

Does anyone know what, if anything, is required to be covered in terms of mental health benefits for a self-insured, non-grandfathered plan?

You would have to comply with the mental health parity rules under the MHPAEA.  Here's an overview: https://www.newfront.com/blog/the-caa-mental-health-parity-comparative-analysis-requirement