ACLM does not have an IRB. For our internal projects, we use a fee-for-service IRB, and that is an option for any investigator wanting to do human subjects research.
There are a number of these IRBs, and here are three that ACLM is familiar with:
BRANY IRB Services - Institutional Review Board
Institutional Review Board (IRB) Services - Advarra
University of Southern Maine Collaborative Institutional Review Board (IRB)