Section 408.30452. Flood hazard areas.

Section 3403.2 of the code is amended and section 1612.3.3 is added to read as follows:

3403.2. Flood hazard areas. Both of the following apply to buildings and structures in flood hazard areas established in section 1612.3:

(1)   All additions shall be in compliance with the flood design requirements for new construction.

(2)    If an addition constitutes substantial improvement of the existing structure, as defined in section 1612.2, all aspects of the existing structure shall be brought into compliance with the requirements for new construction for flood design.

1612.3.3. Alternate flood hazard area determinations. Absent the adoption of a flood hazard map and supporting data, flood hazard areas as determined by the state under its administration of the part 31, floodplain regulatory authority of the natural resources and environmental protection act, 1994 PA 451, MCL 324.101 to 324.90106, shall become the basis for regulation of flood hazard area development and the flood load provisions of this code shall apply to buildings and structures within those areas.

History: 1985 AACS; 1988 AACS; 1995 AACS; 2014 AACS.