Use of coal combustion residuals.

Removes the definition of "coal combustion residuals" from its current location and relocates it to the comprehensive definitions chapter of the environmental law title of the Indiana Code. Defines "structural fill" as a material that is free of rocks and organic matter and, because it is very stable, can be used in construction to create a base or foundation for a structure. Prohibits the use of coal combustion residuals as structural fill unless the coal combustion residuals are fully encapsulated in cement or concrete. Makes a corresponding amendment in a provision prohibiting the environmental rules board from adopting a rule prohibiting the use of coal combustion residuals as structural fill or as a base in road construction.