The search to replace ousted South Suffolk MP Tim Yeo is to officially begin.
Mr Yeo was deselected by the South Suffolk Conservative Association following a secret ballot of members in February.
The 68-year-old had been criticised for not spending enough time in his constituency, preferring to attend board meetings at companies he is associated with. Mr Yeo has been an MP since 1983.
The vacancy for a new candidate is due to be advertised from Tuesday.
High-profile names linked to the position have included Boris Johnson, although Conservative members have insisted they want someone who would be a regular presence in the area.
Up to 200 people are expected to apply for the parliamentary seat.
Nominations will be shortlisted with a new candidate set to be named during a meeting of party members on July 11.