1) different levels of MIL-SPEC parts as baseline parts 2) detailed MIL-SPEC/NASA screening and qualification requirements on COTS or non- MIL-SPEC parts • The U.S. Department of Defense (DoD) Qualified Manufacturers List (QML) process, where the government has control and insight of MIL-SPEC parts, results in parts with high (but not perfect) quality and full access to part- level process controls and verification data