H.R. 9663 is a bill introduced in the House of Representatives that aims to change a part of the United States Code related to defense contracts. It requires the Secretary of Defense to make public the standards for implementing modular open system approaches in defense...
Simple Explanation
The bill wants the person in charge of defense in the U.S. to share the rules for how they make things work together in their projects, like building blocks that fit with others, unless there's a good reason not to. If they don't share, they have to explain why to the people in charge at the government.