Chicago City Council has approved updates and changes to the Mechanical, Fuel Gas, Energy Transformation, Building, Rehabilitation, and Interim Fire Prevention codes, modernizing the mechanical code, fire prevention code, and fuel gas code, as well as general changes to the building and rehab codes to allow for simpler and more affordable residential development. These updates include full updates to the Mechanical, Fuel Gas, Energy Transformation, and Interim Fire Prevention codes, bringing Chicago’s Construction Codes into line with the current model codes.