567—64.1 (455B) Definitions. In addition to the definitions in Iowa Code sections 455B.101 and 455B.171, the following definitions shall apply to this chapter.
	 64.1(1) “Application for construction permit” means the engineering report, plans and specifications and other data deemed necessary by the department for the construction of a proposed wastewater disposal system or part thereof.
	 64.1(2) “Construction permit” means a written approval of the director to construct a wastewater disposal system or part thereof in accordance with the plans and specifications approved by the department.
	 64.1(3) “Application for operation permit” means an application for a written operation permit made on a form provided by the department.
	 64.1(4) “Operation permit” means a written permit by the director authorizing the operation of a wastewater disposal system or part thereof or discharge source, and, if applicable, the discharge of wastes from said disposal system or part thereof or discharge source to waters of the state. An operation permit will be issued as an NPDES permit if the regional administrator has approved the department’s NPDES program and an NPDES permit is required for the disposal system.
	 64.1(5) “Private sewage disposal system” means a system which provides for the treatment or disposal of domestic sewage from four or fewer dwelling units or the equivalent of less than 16 individuals on a continuing basis.
	 64.1(6) “Semipublic sewage disposal system” means a system for the treatment or disposal of domestic sewage which is not a private sewage disposal system and which is not owned by a city, a sanitary sewer district, or a designated and approved management agency under Section 208 of the Act (33 U.S.C. 1288).