8eb4e8a0_se_Security_Cooperation_Agency__Definition
[Term] Engineering Change Proposal (ECP) [Link] N/A [Definition] 
A proposal to a responsible authority recommending that a change to an original item of equipment be considered, and the design or engineering change be incorporated into the article to modify, add to, delete, or supersede original parts.
ESAMM Glossary | Defense Security Cooperation Agency
Definition