Ted Hartill is retiring from his role as councillor for Ainsdale Ward in Sefton.
The Conservative politician, a former police officer in the area, is stepping down after serving in Ainsdale in Southport since his election in May 2012.
He said: “I have spent my entire working life in the service of the public in one form or another.
“I have now reached a time in my life when I feel it is right to step down from formal public service and let someone younger stand in my place.
“Therefore, I will not be standing for re-election in May although I will continue my local work within the community.
“I am delighted to hand over to Dr Jamie Halsall who I know to be a conscientious, hard working and caring person.
“He will be an ideal councillor who has more than proved his worth over the last four years.
“I would ask that the people of Ainsdale to support Jamie as he is a very worthy young man who will work hard for the benefit of local people.”
Sefton Conservative Group leader and fellow Ainsdale councillor Terry Jones paid tribute to his colleagues.
He said: “Many residents in Ainsdale will already know Jamie and those who don’t will find he has a positive approach to dealing with local issues and I know he will be a great councillor for the area.
“We would also like to Thank Ted for all is efforts and support during his term, his contribution to the community will be missed.
“He was also a key figure in rebuilding our local party and we are grateful for is contributions”
Dr Jamie Halsall said: “I am delighted that I have been selected to stand for this year’s local elections.
Over the next couple of months I look forward to meeting residents."