37 Building of flood protection constructions, namely, building of barriers, walls and levees for flood protection; Assembly of flood protection constructions, namely, assembly of barriers, walls and levees for use in flood protection; Maintenance of flood protection constructions, namely, maintenance of barriers, walls and levees for flood protection; Installation of flood protection constructions, namely, installation of barriers, walls and levees for flood protection; Advisory service relating to the installation of flood protection constructions; Advisory service relating to the installation of flood defense walls; Construction planning for protection of inundation of buildings by flood water; Professional advisory services relating to flood control and prevention; Technical advisory services relating to flood control and prevention; Temporary emergency flood protection services, namely assembly of portable flood barriers and levees in urban and rural communities; Flood response services, namely deployment of flood barriers and levees to protect infrastructure, namely residential and commercial properties