Working Groups
& Liaisons 


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Working Groups

Working Groups will be established throughout the year to deliver industry projects and outcomes. If you have an interest in getting involved in an NZ Arb Working Group or are able to support with specific skills, please contact NZ Arb today ( 


Keep an eye on NZ Arb communications also for Working Group vacancies and leadership opportunities as they arise.

Standing Sub-Committees
& Working Groups

UA Committee
(Utility Arborist Development)

Chair: David Glenn


Colin Winch, Carol Cairns, Paul Brown, Trevor Gardiner, Bryson Middleton, Kevin Smith, Mark Roberts, Peleti Tuala-Fata, Jaiden Palmer, Tom Kitson, Ryan Grant, James Sokalski

ACP Working Group
(Approved Contractor Programme)


Brad Cadwallader, Richie Hil, Lea Boodee

Professional Development & Training



NZ TCC Committee
(New Zealand Tree Climbing Competitions)

Chair: Craig Webb

Head Judge: Craig de Denus

Head Tech: Andy Neverman 

Kids Climb: Ben Fentiman


Regional Co-ordinators

Auckland: Chelsea Robertson 

Waik/BoP: Craig Lamb 

Wellington: Josh Symes

South Island: Raoni Hammer


Seb Bainbridge, Jaiden Palmer

Conference Working Group


Mark Roberts, Andrew Benson, Lea Boodee, Nicki van Asch

Liaisons & Representatives

NZ Arb has the following Executive-appointed Liaisons, Representatives and similar positions.


The various roles below are charged with presenting quarterly reports to the Executive Committee at the Executive meetings.

Arbor Day

(Arbor Day Planning & Programmes)

Co-ordinator: Mark Roberts

ISA Certification Certifiers 
(International Society of Arboriculture Certified Examinations)


David Glenn, David James & Mark Roberts

NZ NTT Liaison 
(New Zealand Notable Trees Trust Communications)

Liaison: TBC

ISA Ethics Committee Representative

Liaison: David Glenn

Consultants Group Liaison 
(Qualified Consultants Scheme Development)

Liaison / Chair: Andrew Benson

Members: Howell Davies, Jez Partridge, Erika Commers, David Spencer, Sean McBride, Gavin Donaldson, Matthew Paul, Jon Redfern

ISA COR Chapter Representative
(International Society of Arboriculture Council of Representatives)

Representative: Jaiden Palmer

Website Warden

Liaison: Toby Chapman

ACOP Liaison 
(Approved Code of Practice Part 2 Review)

Liaison: David Glenn

MOU Partners Liaison
(Memorandum of Understanding Development & Maintenance)

Liaison: Howell Davies

Advocacy – Stop The Chop Support

Liaison: TBC

Interested in Joining a Working Group?

Click the button below to enquire about volunteering with NZ Arb.