Residents will be able to vote on 21 May
Three people have put themselves forward for the two vacant seats on Garff Commissioners.
James Curtis, James Hewison and Richard Taylor will be contesting the by-election on 21 May.
It comes after the resignation of Stuart Clague and Tim Kenyon over the local authority's decision to support Manx Utilities sewage treatment works proposal.
Polling stations are yet to be confirmed by Garff Commissioners.
How to pick a Chief Minister
MHKs will vote on Tuesday to choose Alfred Cannan's successor
MNH working on 'interim solution' for online newspaper archive
It was announced late last month that service would cease
Applications for Child Benefit move online
Demonstrates 'commitment to improving accessibility', says minister
Woman takes on marathon challenge after endometriosis battle
Bethany Colgan suffered with condition for years before being diagnosed