The 2024 International Codes have undergone substantial formatting changes as part of the digital transformation strategy of the International Code Council to improve the user experience. The changes, promoting a cleaner, more modern look and enhancing readability and sustainability, include: Single column text format and modernized font styles improves readability, QR Codes replace vertical margin sidebars and arrows to identify code changes more accurately, Shading for table headers and notes improves locating tables and applicable notes, Grouping of associated content brings tables and figures immediately after the parent section. The 2024 IECC addresses energy efficiency on several fronts including cost, energy usage, use of natural resources and the impact of energy usage on the environment.