Energy Code Stirs Up Politics Like all model codes, the Council of American Building Officials' Model Energy Code (CABOMEC) changes over time. Every three years CABO revises the document through the same kind of consensus procedure it uses to update its One- and Two- Family Dwelling Code. From there, the story gets more complicated. States and localities can choose for themselves to use CABOMEC as their energy code, to adopt just parts of it, to create their own energy code, or to have no energy code at all. So depending on where you build, you may or may not have to work with CABO-MEC. But if your state doesn't use CABO-MEC yet, chances are it