If a new fee schedule (etc) is provided to consumers in advance of a FI acquisition is there a requirement to highlight the specific fees that will be higher than the acquired FI had or is the delivery of a new fee schedule sufficient.

What do you mean in advance of an acquisition?

In advance - ahead of the acquisition date when we provide membership disclosures and fee schedule etc.

If you are providing a new disclosure, the adverse changes must be highlighted. See the commentary to 1030.5(a)

1. Form of notice. Institutions may provide a change-in-term notice on or with a periodic statement or in another mailing. If an institution provides notice through revised account disclosures, the changed term must be highlighted in some manner. For example, institutions may note that a particular fee has been changed (also specifying the new amount) or use an accompanying letter that refers to the changed term.