- American Association for Laboratory Accreditation (A2LA)
- American National Standards Institute
- American Society for Quality
- American Welding Society
- ASM International
- ASME
- ASTM International Standards Worldwide
- Canadian Institute for NDE
- Center for Nondestructive Evaluation
- NDT.net
- NDT.org for Inspection and Nondestructive Testing
- Nondestructive Testing Management Association
- North American Die Casting Association
- The American Society for Nondestructive Testing
Toll Free
1-800-505-RNDT