The proposal guidelines are downloadable as a .pdf file here. They have been slightly updated for the FY23 proposal cycle.
Proposals should be submitted to: eic_rd_prgm@jlab.org
Questions can be submitted to the committee Chair, Dave Mack: mack"at"jlab"dot"org
A recent overview of the EPIC detector by Maria Zurek may be helpful for orientation: https://indico.bnl.gov/event/18414/contributions/76158/attachments/4758… .