| Specification | Process Description | Category | Limits |
| ACS-PRS-1008 | Forming & Straightening of Titanium and Titanium Alloys. “Suppliers limited to cold forming of titanium per ACS-PRS-1008 are not required to be approved by NGC provided all stress relief operations are performed by an approved supplier to AMS2801.” | Miscellaneous | Limits: Hot forming only. |
| ACS-PRS-2151 | Process Specification for Sealing, Integral Fuel Tank and Fuel Cell Cavity | Finishes/Coatings | Limits: Limited to pre-measured sealant dispensing cartridges (Semkits) |