Design codes are a set of guidelines and standards that dictate how buildings, structures, and products should be designed, constructed, and maintained over their lifetimes. It is a specialized skill that requires a deep understanding of the engineering principles, regulations, and industry best practices. Design codes ensure safety, reliability, and efficiency, and they play a critical role in shaping the built environment. They are developed by professional organizations, government agencies, and industry groups, and they are constantly evolving to keep up with technological advancements and new design trends.