Born in Crookwell, Mr Marmont started his career in Goulburn before moving to Hay.

"I joined the honorary staff in Goulburn in May 1969 and joined the permanent staff in July 1969, moved to Tumbarumba for six months and came to Hay in May 1975," he said.

Friday was his last day at work as an advanced life support paramedic station officer after "50 years, six months and a few days".

Mr Marmont said the main difference in working as a paramedic in smaller towns is you often met up with the people you helped later down the track.

"I often had to work on my own in the early days. I was the first permanent officer in Hay in 1975 as prior to that it was a full honorary service run by volunteers," he said.

"You will see people down the street and you will hear what was actually wrong with them.

"You might have thought you knew what was wrong and you treated what you saw but in a small town they come up to you and say 'oh, you treated me the other day when I had such-and-such'. That was a learning experience."

Mr Marmont said the one of his most memorable jobs was a vehicle collision that he felt certain would turn out to be fatal.

"About three years ago just before Christmas a car had gone up the back of a stationary semi-trailer and it had gone underneath the trailer.

"We spent four hours with the rescue squad and four ambos getting those people out and having two helicopters on the highway at the same time getting blood from Hay and Griffith to administer to the patients.

"Both patients survived, which was a miracle. The other ones that make a difference are births; to be able to deliver a baby on the side of the road and the last one I delivered was in the middle of a mob of cattle."

Mr Marmont said "a lot" had changed during his time as a paramedic and he could now perform a lot more treatments and procedures than in years past.

"When I first joined we had one drug, if you could call it a drug, called Trilene," he said.

"It was actually what was used to dry clean your clothes in that era, so we had one drug and oxygen and that was all we had in 1969.

"Today we have got 30-odd drugs and skills that are outside of done outside of a hospital that were once only done inside.

"We are able to do a large range of treatments and probably the one that has made the most difference in morphine: to be able to give pain relief to someone who has a broken leg is much better than what it used to be."

Mr Marmont said he planned to travel during his retirement and sped more time with his family.