Along with the NZ vest has come a tough regime from the selectors as Nossiter prepares to depart for the Czech Republic and Slovakia at the end of June.
"I'm in the school gym once a day and paddling on the river each day ... plus there's all my school work. Still, I get Sundays off."
Nossiter has made his mark in the longer-distance events, having won the junior national marathon title, but will be competing over 1000 metres and 500 metres in Europe.
At 16, he is the youngest member of the New Zealand squad, joining Henry Ellingham, Jarrod Fitzgerald and Zac Quickenden in the Under-18 team that will travel with a women's junior squad, plus Under-23 and open-age foursomes.
There's a stopover in Paris and competition at the Czech Republic and the Slovakian national championships that will attract top kayakers from all over the world.
It's an exciting prospect for Nossiter, who was surprised to edge out his rivals at the trial - "When I told my Mum, she didn't believe me.
"It's a pretty big trip for my first time overseas," added the teenager, who has been a serious paddler for just three years after doing triathlons with the Wanganui Multisport and Triathlon Club.
Gradually, the bike and running shoes were left behind by the paddle and Nossiter started enjoying success.
"I think I learned to listen to my coaches," he says of his rapid progress which saw him win seven medals, including two golds, at February's national championships in Rotorua, helping the Wanganui club to its best-ever results and third place overall in the teams event.
Now he faces another challenge, - he has four weeks to raise $4000 to fund the trip. To that end, he has been door-knocking trying to find sponsors, while his mother, Tania, and Multisport and Triathlon Club members have been fundraising.
They were sizzling sausages at Majestic Square yesterday and will be there next Friday, as well as outside Harvey Norman on June 2.