No garbage, or rubbish containing garbage or other putrescible materials, or hazardous wastes shall be burned except in approved incinerators meeting the necessary temperature requirements and air pollution controls as now established or may later be established. The open burning of rubbish shall be permitted only under controlled circumstances where sanitary landfill and landfill is not feasible, and not in proximity to sanitary landfill or landfill operations where spread of fire to these operations may be a hazard in the opinion of the controlling agency.