Worked on the mozilla/application-services repository to deliver Android Address Subregion Code Standardization, focusing on migrating address data to use short subregion codes such as 'CA' instead of full names. This migration aligned Android address formats with Gecko’s requirements, reducing cross-platform inconsistencies and stabilizing the address data pipeline. The approach involved database migration techniques and leveraged Rust and SQL to ensure data integrity and maintainability. By resolving Bug 1993388, the work established a scalable foundation for future regional code handling, enhancing the consistency of address data across platforms and preparing the data layer for ongoing expansion and easier long-term maintenance.