e-MERLIN has issued a call for proposals. See this link for detailed instructions.
e-MERLIN requests proposals from the international astronomical
community for observations to be made during Cycle-5. Proposals are
competitively peer-reviewed under standard STFC rules by the PATT
e-MERLIN Time Allocation Committee. Allocation will be made on the
basis of scientific merit and technical feasibility alone. During
e-MERLIN operations ~50% of observing time has been allocated to large
legacy projects and most of the remaining time will be allocated via
PATT to standard proposals solicited prior to each observing semester.