| 2. Model code. After the effective date of rules adopted |
pursuant to subsection 1, a municipality may not adopt a building |
energy code other than the model building energy code or an amended |
version of the model building energy code. For purposes of this |
subsection, "amended version of the model energy building code" |
means a version of the code that does not include certain parts or |
portions of the code or that creates new exemptions from its |
requirements but does not include a version of the code that |
includes modifications to any standard established in the code. |
Nothing in this section requires a municipality to adopt a building |
energy code. A municipality that has a building energy code in |
effect prior to the effective date of the rules may continue to |
keep that code, but if the municipality replaces its energy code it |
must adopt the model building energy code or an amended version of |
the model energy building code in accordance with this subsection. |