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| 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. |