Over the four weeks of Community Carnival (February 2 through to February 27), NRL players are expected to reach 250,000 kids across 300 towns and 900 schools, and deliver 80 Junior League clinics.
The community message of this year's event is wellbeing, focussing on everything from nutrition and healthy eating, to regular exercise and mental health.
"Jerome's appointment will further extend the reach of our community program in New Zealand, complementing the great work already done by the Warriors," Adam Check, NRL Head of Community said.
"Jerome had a fantastic career, playing 145 games and 11 tests, including winning the 2008 Rugby League World Cup with the Kiwis. His achievements on the field were surpassed only by his exceptional commitment to community.
"He has a genuine enthusiasm for making positive change and we're delighted to welcome him to the NRL Community fold."
League's new Wellbeing program aims to harness the NRL's popularity to empower and educate students to value wellbeing in their own lives. Providing a holistic view of health, each of the seven comprehensive lessons establishes strong links between Nutrition, Physical Activity and Mental Health to our overall wellbeing.