567—119.4 (455D,455B) Operational requirements for acceptance of used oil. Any person accepting used oil from customers shall comply with the following requirements:
	 119.4(1) Used oil shall be accepted which is contained in a closed, unbreakable, preferably reusable, container.
	 119.4(2) Used oil collectors shall provide supervision of the collection process to minimize the risk of spills and to prevent customers from depositing contaminated used oil into the collection tank. However, this does not preclude designating unsupervised drop-off sites for used oil as long as the following conditions are met:
	  a.   	 Only sealed containers of five gallons or less shall be accepted.
	  b.   	 The designated drop-off site must be protected from the elements.
	  c.   	 Customers shall drop off their used oil in containers at the designated site and are not permitted to deposit their used oil into a collection tank.
	  d.   	 The designated site must be located on an impervious surface engineered to contain potential spills.
	 119.4(3) During noncollection hours, the tank must be secured to prevent the contamination of the collected used oil.
	 119.4(4) A sign shall be placed on or near the used oil collection tank which includes the statement: This tank is for used oil collection only. The depositing of other materials is prohibited.
	 119.4(5) Collectors of used oil shall ensure that the ultimate disposition of used oil collected is for recycling and reuse.
	 119.4(6) Used oil found to be contaminated shall be managed as a hazardous waste. There is no obligation to accept contaminated oil.
	 119.4(7) Used oil collectors shall comply with Iowa Code section 455B.386 when actual or imminent oil spills pose a threat to the public health or the environment.
	 119.4(8) Absorbent material shall be available at the site for use by the operator to control spillage or discharge of used oil.