The CORBEL project has gathered the AAI developers from the Life Science research infrastructures together to draft the requirements specification for a Life Science AAI (LS AAI), a common AAI to serve the Life Science research infrastructures. In October 2017 the LS AAI developers presented their requirements and asked the e-infrastructures to come with a proposal on the pilot within the AARC2 project. In the presentation we present the requirements on the LS AAI and some key non-technical considerations for the deployment phase.