There are now 11 candidates hoping to succeed Boris Johnson as Conservative leader and the next UK Prime Minister.
A meeting of the backbench committee that decides on the rules for the leadership race will set out a timetable and guidelines later.
They'll also decide how many colleagues will need to back a candidate to officially be in the running.
Environment minister George Eustice, who's publicly backing transport secretary Grant Shapps, tells us what we can expect: