The ARRL now has a newly-signed Memorandum of Understanding (MOU) with the American National Red Cross.
Here is a direct link to the MOU:
The ARRL Web’s News page has an introductory article about the new MOU at this link:
Section Manager or the Section Emergency Coordinator may sign this local agreement on behalf of the ARRL Section, ARES unit or local radio club.
The local Red Cross regional leader or chapter leader would also sign on behalf of the local Red Cross organization.
ARRL Headquarters and the American National Red Cross Headquarters are very interested in having copies of these local statements of cooperation that are signed for the first time or are renewed.