1. Under Secretary, Acquisition and Sustainment, Directive-type Memorandum (DTM)-19-006—Interim Policy and Guidance for the Use of Additive Manufacturing (AM) in Support of Materiel Sustainment, Pentagon, Washington, DC, 21 March 2019https://www.esd.whs.mil/Portals/54/Documents/DD/issuances/dtm/DTM-19-006.pdf?ver=2019-03-21-075332-443
2. Additively manufactured Ti-6Al-4V replacement parts for military aircraft
3. Structures Bulletin EZ-SB-19-01, Durability and Damage Tolerance Certification for Additive Manufacturing of Aircraft Structural Metallic Parts, Wright Patterson Air Force Base, OH, USA, 10 June 2019https://daytonaero.com/usaf-structures-bulletins-library/
4. MIL-STD-1530D, Department Of Defense Standard Practice Aircraft Structural Integrity Program (ASIP), 13 October 2016http://everyspec.com/MIL-STD/MIL-STD.../download.php?spec=MIL-STD-1530D,