Can providers be required by potential commercial supporters to share the list of expected authors or speakers with commercial supporters, during the process of applying for an educational grant?

No. The ACCME cannot control what a commercial interest asks of an accredited provider but there is no CME reason for the provider to share the names of speakers/authors with commercial supporters.  An accredited provider that submits to the requirement of a commercial supporter to supply the names of speakers and authors could be participating in a process whereby the commercial supporter is controlling the selection of speakers and authors in accredited CME. The provider may be found in noncompliance with the ACCME Standards for Commercial Support^SM: Standards to Ensure Independence in CME Activities.