| Specification | ProcessDescription | Category | SpecLimits |
| ASTM E1417 | Standard Practice for Liquid Penetrant Testing | Non-Destructive Testing | Limits: Limited to Type I, Methods A or C for non-flight ground support hardware only |
| AWS D1.1 | Structural Steel Welding - Steel | Welding | Limits: Limited to Class C or lower, nonflight ground support hardware |
| AWS D1.2 | Structural Welding - Aluminum | Welding | Limits: Limited to Class C or lower non-flight ground support hardware |
| AWS D1.6 | Structural Welding - Stainless Steel | Welding | Limits: Limited to Class C or lower non-flight ground support hardware |
| AWS D17.1 | Fusion Welding for Aerospace Applications | Welding | Limits: Limited to Class C or lower non-flight ground support hardware |