The NZNDTA represents the interests of NDT practitioners in New Zealand and internationally which includes:
- Upholding the Certification Board for Inspection Personnel (CBIP) code of ethics
- Promoting NDT as a career through educational programmes in conjunction with the Heavy Engineering Research Association (HERA)
- Organizing national NDT conferences and seminars
- Liaising with the International Committee for Non Destructive Testing (ICNDT) to promote the establishment of harmonization of NDT certification schemes
- Holding country representation on the International Atomic Energy Agency (IAEA)