| Specification | ProcessDescription | Category | SpecLimits |
| 2ZZP00013 | Fusion Welding | Welding | Limits: GTAW only |
| AWS D1.1 | Structural Steel Welding - Steel | Welding | Limits: Approved for GTAW and GMAW only |
| AWS D1.2 | Structural Welding - Aluminum | Welding | Limits: Approved for GTAW only |
| AWS D17.1 | Fusion Welding for Aerospace Applications | Welding | Limits: Approved for GTAW only |