Engineering Change Order

An Engineering Change Order (ECO) is a formal document used to propose and approve modifications to a product's design or manufacturing process. It ensures that any changes—such as improving performance, correcting errors, or updating materials—are carefully reviewed, documented, and implemented systematically. ECOs help teams communicate updates clearly, track revisions, and maintain consistency throughout production, ultimately ensuring the final product meets quality standards and customer requirements. They are essential for managing controlled, intentional adjustments within complex engineering projects.