Iowa Code § 455B.165 (2026)

Referred to in §455H.102, 459A.401\n\n PART 1 GENERAL Referred to in §455B.103A\n\n 455B.171 Definitions. When used in this part 1 of subchapter III, unless the context otherwise requires: \n Tue Dec 09 22:11:03 2025 Iowa Code 2026, Chapter 455B (104, 1) 31 JURISDICTION OF DEPARTMENT OF NATURAL RESOURCES, §455B.171\n\n 1. “Abandoned well” means a water well which is no longer in use or which is in such a state of disrepair that continued use for the purpose of accessing groundwater is unsafe or impracticable.

2. “Construction” of a water well means the physical act or process of making the water well including but not limited to siting, excavation, construction, and the installation of equipment and materials necessary to maintain and operate the well.

3. “Contractor” means a person engaged in the business of well construction or reconstruction or other well services.

4. “Credible data” means scientifically valid chemical, physical, or biological monitoring data collected under a scientifically accepted sampling and analysis plan, including quality control and quality assurance procedures. Data dated more than five years before the department’s date of listing or other determination under section 455B.194, subsection 1, shall be presumed not to be credible data unless the department identifies compelling reasons as to why the data is credible.

5. “Disposal system” means a system for disposing of sewage, industrial waste, or other wastes, or for the use or disposal of sewage sludge. “Disposal system” includes sewer systems, treatment works, point sources, dispersal systems, and any systems designed for the usage or disposal of sewage sludge.

6. “Effluent standard” means any restriction or prohibition on quantities, rates, and concentrations of chemical, physical, biological, radiological, and other constituents which are discharged from point sources into any water of the state including an effluent limitation, a water quality related effluent limitation, a standard of performance for a new source, a toxic effluent standard, or other limitation.

7. “Federal Water Pollution Control Act” means the federal Water Pollution Control Act of 1972, Pub. L. No. 92-500, as published in 33 U.S.C. §1251 – 1376, as amended through December 31, 1985.

8. “Food commodity” means any commodity that is derived from an agricultural animal or crop, both as defined in section 717A.1, which is intended for human consumption in its raw or processed state.

a. A food commodity in its raw state for processing includes but is not limited to milk, eggs, vegetables, fruits, nuts, syrup, and honey.

b. A food commodity in its processed state includes but is not limited to dairy products, pastries, pies, and meat or poultry products.

9. “Historical data” means data collected more than five years before the department’s date of listing or other determination under section 455B.194, subsection 1.

10. “Industrial waste” means any liquid, gaseous, radioactive, or solid waste substance resulting from any process of industry, manufacturing, trade, or business or from the development of any natural resource.

11. “Iowa nutrient reduction strategy” means a water quality initiative developed and updated by the department of agriculture and land stewardship, the department of natural resources, and the college of agriculture and life sciences at Iowa state university of science and technology in order to assess and reduce nutrients in this state’s watersheds that utilize a pragmatic, strategic, and coordinated approach with the goal of accomplishing reductions over time.

12. “Manure” means the same as defined in section 459.102.

13. “Manure sludge” means the solid or semisolid residue produced during the treatment of manure in an anaerobic lagoon.

14. “Maximum contaminant level” means the maximum permissible level of any physical, chemical, biological, or radiological substance in water which is delivered to any user of a public water supply system.

15. “Naturally occurring condition” means any condition affecting water quality which is not caused by human influence on the environment including but not limited to soils, geology, hydrology, climate, wildlife influence on the environment, and water flow with specific consideration given to seasonal and other natural variations.

16. “New source” means any building, structure, facility, or installation, from which there is or may be the discharge of a pollutant, the construction of which is commenced after the \n Tue Dec 09 22:11:03 2025 Iowa Code 2026, Chapter 455B (104, 1) §455B.171, JURISDICTION OF DEPARTMENT OF NATURAL RESOURCES 32\n\npublication of proposed federal rules prescribing a standard of performance which will be applicable to such source, if such standard is promulgated.

17. “Nutrient” means total nitrogen and total phosphorus.

18. “On-farm processing operation” means any place located on a farm where the form or condition of a food commodity originating from that farm or another farm is changed or packaged for human consumption, including but not limited to a dairy, creamery, winery, distillery, cannery, bakery, or meat or poultry processor.

19. “Other waste” means heat, garbage, municipal refuse, lime, sand, ashes, offal, oil, tar, chemicals, and all other wastes which are not sewage or industrial waste.

20. a. “Person” means any agency of the state or federal government or institution thereof, any municipality, governmental subdivision, interstate body, public or private corporation, individual, partnership, or other entity and includes any officer or governing or managing body of any municipality, governmental subdivision, interstate body, or public or private corporation.

b. For the purpose of imposing liability for violation of a section of this part, or a rule or regulation adopted by the department of natural resources under this part, “person” does not include a person who holds indicia of ownership in contaminated property from which prohibited discharges, deposits, or releases of pollutants into any water of the state have been or are evidenced, if the person has satisfied the requirements of section 455B.381, subsection 7, paragraph “b”, with respect to the contaminated property, regardless of whether the department has determined that the contaminated property constitutes a hazardous condition site.

21. “Point source” means any discernible, confined, and discrete conveyance, including but not limited to any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding operation, or vessel or other floating craft, from which pollutants are or may be discharged. “Point source” does not include agricultural storm water discharge and return flows from irrigated agriculture.

22. “Pollutant” means sewage, industrial waste, or other waste.

23. “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 sixteen individuals on a continuing basis.

24. “Private water supply” means any water supply for human consumption which has less than fifteen service connections and regularly serves less than twenty-five individuals.

25. “Production capacity” means the amount of potable water which can be supplied to the distribution system in a twenty-four-hour period.

26. “Public water supply system” means a system for the provision to the public of piped water for human consumption, if the system has at least fifteen service connections or regularly serves at least twenty-five individuals. The term includes any source of water and any collection, treatment, storage, and distribution facilities under control of the operator of the system and used primarily in connection with the system, and any collection or pretreatment storage facilities not under such control which are used primarily in connection with the system.

27. “Reconstruction” of a water well means replacement or removal of all or a portion of the casing of the water well.

28. “Schedule of compliance” means a schedule of remedial measures including an enforceable sequence of actions or operations leading to compliance with any effluent standard, water quality standard, or any other requirement of this part 1 of subchapter III or any rule promulgated pursuant to this subchapter.

29. “Section 303(d) list” means any list required under 33 U.S.C. §1313(d).

30. “Section 305(b) report” means any report required under 33 U.S.C. §1315(b).

31. “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 district, or a designated and approved management agency under §1288 of the federal Water Pollution Control Act, codified at 33 U.S.C. §1288.

32. “Septage” means the liquid and solid material pumped from a septic tank, cesspool,\n\nTue Dec 09 22:11:03 2025 Iowa Code 2026, Chapter 455B (104, 1) 33 JURISDICTION OF DEPARTMENT OF NATURAL RESOURCES, §455B.171\n\nor similar domestic sewage treatment system, or from a holding tank, when the system is cleaned or maintained.

33. “Sewage” means the water-carried waste products from residences, public buildings, institutions, or other buildings, including the bodily discharges from human beings or animals together with such groundwater infiltration and surface water as may be present.

34. “Sewage sludge” means any solid, semisolid, or liquid residue removed during the treatment of municipal waste water or domestic sewage. “Sewage sludge” includes but is not limited to solids removed during primary, secondary, or advanced waste water treatment, scum septage, portable toilet pumpings, type III marine device pumpings as defined in 33 C.F.R. ch. 1, subch. O, pt. 159, and sewage sludge products. “Sewage sludge” does not include grit, screenings, or ash generated during the incineration of sewage sludge.

35. “Sewer extension” means pipelines or conduits constituting main sewers, lateral sewers, or trunk sewers used for conducting pollutants to a larger interceptor sewer or to a point of ultimate disposal.

36. “Sewer system” means pipelines or conduits, pumping stations, force mains, vehicles, vessels, conveyances, injection wells, and all other constructions, devices, and appliances appurtenant thereto used for conducting sewage or industrial waste or other wastes to a point of ultimate disposal or disposal to any water of the state. To the extent that they are not subject to section 402 of the federal Water Pollution Control Act, ditches, pipes, and drains that serve only to collect, channel, direct, and convey nonpoint runoff from precipitation are not considered as sewer systems for the purposes of this part 1 of subchapter III.

37. “Toilet unit” means a portable or fixed tank or vessel holding untreated human waste without secondary wastewater treatment that is emptied for disposal. “Toilet unit” does not include a portable or fixed tank or vessel holding untreated human waste that is part of a recreational vehicle or marine vessel.

38. “Total maximum daily load” means the same as in the federal Water Pollution Control Act.

39. “Treatment works” means any plant, disposal field, lagoon, holding or flow-regulating basin, pumping station, or other works installed for the purpose of treating, stabilizing, or disposing of sewage, industrial waste, or other wastes.

40. “Viable” means a disposal system or a public water supply system which is self-sufficient and has the financial, managerial, and technical capability to reliably meet standards of performance on a long-term basis, as required by state and federal law, including the federal Water Pollution Control Act and the federal Safe Drinking Water Act.

41. “Water of the state” means any stream, lake, pond, marsh, watercourse, waterway, well, spring, reservoir, aquifer, irrigation system, drainage system, and any other body or accumulation of water, surface or underground, natural or artificial, public or private, which are contained within, flow through or border upon the state or any portion thereof.

42. “Water pollution” means the contamination or alteration of the physical, chemical, biological, or radiological integrity of any water of the state by a source resulting in whole or in part from the activities of humans, which is harmful, detrimental, or injurious to public health, safety, or welfare, to domestic, commercial, industrial, agricultural, or recreational use or to livestock, wild animals, birds, fish, or other aquatic life.

43. “Water supply distribution system extension” means any extension to the pipelines or conduits which carry water directly from the treatment facility, source or storage facility to the consumer’s service connection.

44. “Water well” means an excavation that is drilled, cored, bored, augered, washed, driven, dug, jetted, or otherwise constructed for the purpose of exploring for groundwater, monitoring groundwater, utilizing the geothermal properties of the ground, or extracting water from or injecting water into the aquifer. “Water well” does not include an open ditch or drain tiles or an excavation made for obtaining or prospecting for oil, natural gas, minerals, or products mined or quarried. [C66, 71, §455B.2; C73, 75, 77, 79, 81, §455B.30; 82 Acts, ch 1050, §1, 2, ch 1199, §6, 7, 8, 96] C83, §455B.171 83 Acts, ch 137, §2; 84 Acts, ch 1121, §1, 2; 85 Acts, ch 176, §1; 86 Acts, ch 1144, §1; 86 Acts, ch 1237, §29; 91 Acts, ch 224, §3; 92 Acts, ch 1041, §1; 93 Acts, ch 42, §1; 95 Acts, ch 195, §20; \n Tue Dec 09 22:11:03 2025 Iowa Code 2026, Chapter 455B (104, 1) §455B.171, JURISDICTION OF DEPARTMENT OF NATURAL RESOURCES 34\n\n96 Acts, ch 1079, §13; 97 Acts, ch 137, §1, 2; 98 Acts, ch 1209, §22; 2000 Acts, ch 1068, §9; 2000 Acts, ch 1232, §72; 2002 Acts, ch 1137, §25, 68, 71; 2002 Acts, ch 1138, §3, 5; 2002 Acts, 2nd Ex, ch 1003, §249, 260, 262; 2003 Acts, ch 44, §66; 2005 Acts, ch 153, §1; 2007 Acts, ch 126, §74; 2009 Acts, ch 41, §132; 2011 Acts, ch 31, §1; 2012 Acts, ch 1023, §56; 2018 Acts, ch 1001, §18, 19; 2021 Acts, ch 76, §86, 150 Referred to in §16.1, 29D.2, 135.39E, 161A.42, 331.382, 427.1(19)(e), 455B.172, 455B.176A, 455B.190, 455B.190A, 455B.194, 455B.266, 455B.291, 455E.2, 459.102, 459A.102, 459A.205, 466B.2 Legislative intent relating to changes to "point source" definition by 2018 Iowa Acts, ch 1001, §19; 2018 Acts, ch 1001, §26\n\n 455B.172 Jurisdiction of department and local boards.

1. The department is the agency of the state to prevent, abate, or control water pollution and to conduct the public water supply program.

2. The department shall carry out the responsibilities of the state related to private water supplies and private sewage disposal systems for the protection of the environment and the public health and safety of the citizens of the state.

3. Each county board of health shall adopt standards for private water supplies and private sewage disposal facilities. These standards shall be at least as stringent but consistent with the standards adopted by the commission. If a county board of health has not adopted standards for private water supplies and private sewage disposal facilities, the standards adopted by the commission shall be applied and enforced within the county by the county board of health.

4. Each county board of health shall regulate the private water supply and private sewage disposal facilities located within the county board’s jurisdiction, including the enforcement of standards adopted pursuant to this section.

5. a. The department shall maintain jurisdiction over and regulate the direct discharge to a water of the state. The department shall retain concurrent authority to enforce state standards for private water supply and private sewage disposal facilities within a county, and exercise departmental authority if the county board of health fails to fulfill board responsibilities pursuant to this section.

b. The department shall by rule adopt standards for the commercial cleaning of private sewage disposal facilities, including but not limited to septic tanks, and for the disposal of waste from the facilities. The standards shall not be in conflict with the state building code adopted pursuant to section 103A.7. A person shall not commercially clean such facilities or dispose of waste from such facilities unless the person has been issued a license by the department. The department shall be exclusively responsible for adopting the standards and issuing licenses. However, county boards of health shall enforce the standards and licensing requirements established by the department. The department may contract for the delegation of the authority for inspection of land application sites, record reviews, and equipment inspections to a county board of health. In the event of entering into such a contract, the department shall retain concurrent authority over such activities. Application for the license shall be made in the manner provided by the department. Licenses expire one year from the date of issue unless revoked and may be renewed in the manner provided by the department. A license application shall include registration applications for each vehicle used by the applicant for purposes of collecting septage from private sewage disposal facilities and each vehicle used by the applicant for purposes of applying septage to land. Septic disposal management plans shall be submitted to the department and approved annually as a condition of licensing and shall also be filed annually with the county board of health in the county where a proposed septage application site is located. The septic disposal management plan shall include, but not be limited to, the sites of septage application, the anticipated volume of septage applied to each site, the area of each septage application site, the type of application to be used at each site, the volume of septage expected to be collected from private sewage disposal facilities, and a list of registered vehicles collecting septage from private sewage disposal facilities and applying septage to land. The annual license or license renewal fee for a person commercially cleaning private sewage disposal facilities shall be established by the department based on the volume of septage that is applied to land. A septic management fund is created in the state treasury under the control of the department. Annual license and license renewal fees collected pursuant to this section shall be deposited \n Tue Dec 09 22:11:03 2025 Iowa Code 2026, Chapter 455B (104, 1) 35 JURISDICTION OF DEPARTMENT OF NATURAL RESOURCES, §455B.172\n\nin the septic management fund and are appropriated to the department for purposes of contracting with county boards of health to conduct land application site inspections, record reviews, and septic cleaning equipment inspections. A person violating this section or the rules adopted pursuant to this section as determined by the department is subject to a civil penalty of not more than two hundred fifty dollars. The department shall adopt rules related to, but not limited to, recordkeeping requirements, application procedures and limitations, contamination issues, loss of septage, failure to file a septic disposal management plan, application by vehicles that are not properly registered, wrongful application, and violations of a septic disposal management plan. Each day that a violation continues constitutes a separate offense. The penalty shall be assessed for the duration of time commencing with the time the violation begins and ending with the time the violation is corrected. The septic disposal management plan may be examined to determine the duration of the violation. Moneys collected by the department from the imposition of civil penalties shall be deposited in the general fund of the state. Moneys collected by a county board of health from the imposition of civil penalties shall be deposited in the general fund of the county.

6. a. The department shall by rule adopt standards for the commercial cleaning of toilet units and for the disposal of waste from toilet units. Waste from toilet units shall be disposed of at a wastewater treatment facility and shall not be applied to land. The department may contract for the delegation of the authority for inspection of record reviews and equipment inspections for such units to a county board of health. In the event of entering into such a contract, the department shall retain concurrent authority over such activities.

b. A person shall not commercially clean toilet units or dispose of waste from such units unless the person has been issued a license by the department. The department shall be exclusively responsible for adopting the standards and issuing licenses. However, county boards of health shall enforce the standards and licensing requirements established by the department. Application for the license shall be made in the manner provided by the department. Licenses expire one year from the date of issue unless revoked and may be renewed in the manner provided by the department. A license application shall include registration applications for each vehicle used by the applicant for purposes of collecting waste from toilet units and each vehicle used by the applicant for purposes of transporting waste from toilet units to a wastewater treatment facility. The annual license or license renewal fee for a person commercially cleaning toilet units shall be established by the department based on the number of trucks or vehicles used by the licensee for purposes of commercial cleaning of toilet units and for the disposal of waste from the toilet units. For purposes of this subsection, “vehicle” includes a trailer.

c. A toilet unit fund is created in the state treasury under the control of the department. Annual license and license renewal fees collected pursuant to this subsection shall be deposited in the toilet unit fund and are appropriated to the department for purposes of contracting with county boards of health to conduct record reviews and toilet unit cleaning equipment inspections.

d. A person violating this section or the rules adopted pursuant to this section as determined by the department is subject to a civil penalty of not more than five hundred dollars. Each day that a violation continues constitutes a separate offense. The penalty shall be assessed for the duration of time commencing with the time the violation begins and ending with the time the violation is corrected. Moneys collected by the department from the imposition of civil penalties shall be deposited in the general fund of the state. Moneys collected by a county board of health from the imposition of civil penalties shall be deposited in the general fund of the county.

7. a. The department is the state agency to regulate the construction, reconstruction and abandonment of all of the following water wells:

(1) Those used as part of a public water supply system as defined in section 455B.171.

(2) Those used for the withdrawal of water for which a permit is required pursuant to section 455B.268, subsection 1.

(3) Those used for the purpose of monitoring groundwater quantity and quality required or installed pursuant to directions or regulations of the department.

b. A local board of health is the agency to regulate the construction, reconstruction \n Tue Dec 09 22:11:03 2025 Iowa Code 2026, Chapter 455B (104, 1) §455B.172, JURISDICTION OF DEPARTMENT OF NATURAL RESOURCES 36\n\nand abandonment of water wells not otherwise regulated by the department. The local board of health shall not adopt standards relative to the construction, reconstruction and abandonment of wells less stringent than those adopted by the department.

8. The department is the state agency to regulate the registration or certification of water well contractors pursuant to section 455B.187 or section 455B.190A.

9. Pursuant to chapter 28E, the department may delegate its authority for regulation of the construction, reconstruction and abandonment of water wells specified in subsection 7 or the registration of water well contractors specified in subsection 8 to boards of health or other agencies which have adequate authority and ability to administer and enforce the requirements established by law or rule.

10. Any county ordinance related to sewage sludge which is in effect on March 1, 1997, shall not be preempted by any provision of section 455B.171, 455B.174, 455B.183, or 455B.304.

11. a. If a building where a person resides, congregates, or is employed is served by a private sewage disposal system, the sewage disposal system serving the building shall be inspected prior to any transfer of ownership of the building. The requirements of this subsection shall be applied to all types of ownership transfer including at the time a seller-financed real estate contract is signed. The county recorder shall not record a deed or any other property transfer or conveyance document until either a certified inspector’s report is provided which documents the condition of the private sewage disposal system and whether any modifications are required to conform to standards adopted by the department or, in the event that weather or other temporary physical conditions prevent the certified inspection from being conducted, the buyer has executed and submitted a binding acknowledgment with the county board of health to conduct a certified inspection of the private sewage disposal system at the earliest practicable time and to be responsible for any required modifications to the private sewage disposal system as identified by the certified inspection. Any type of on-site treatment unit or private sewage disposal system must be inspected according to rules developed by the department. For the purposes of this subsection, “transfer” means the transfer or conveyance by sale, exchange, real estate contract, or any other method by which real estate and improvements are purchased, if the property includes at least one but not more than four dwelling units. However, “transfer” does not include any of the following:

(1) A transfer made pursuant to a court order, including but not limited to a transfer under chapter 633 or 633A, the execution of a judgment, the foreclosure of a real estate mortgage pursuant to chapter 654, the forfeiture of a real estate contract under chapter 656, a transfer by a trustee in bankruptcy, a transfer by eminent domain, or a transfer resulting from a decree for specific performance.

(2) A transfer to a mortgagee by a mortgagor or successor in interest who is in default, a transfer by a mortgagee who has acquired real property as a result of a deed in lieu of foreclosure or has acquired real property under chapter 654 or 655A, or a transfer back to a mortgagor exercising a right of first refusal pursuant to section 654.16A.

(3) A transfer by a fiduciary in the course of the administration of a decedent’s estate, guardianship, conservatorship, or trust.

(4) A transfer between joint tenants or tenants in common.

(5) A transfer made to a spouse, or to a person in the lineal line of consanguinity of a person making the transfer.

(6) A transfer between spouses resulting from a decree of dissolution of marriage, a decree of legal separation, or a property settlement agreement which is incidental to the decree, including a decree ordered pursuant to chapter 598.

(7) A transfer in which the transferee intends to demolish or raze the building. The department shall adopt rules pertaining to such transfers.

(8) A transfer of property with a system that was installed not more than two years prior to the date of the transfer.

(9) A deed arising from a partition proceeding.

(10) A tax sale deed issued by the county treasurer.

(11) A transfer for which consideration is five hundred dollars or less. \n Tue Dec 09 22:11:03 2025 Iowa Code 2026, Chapter 455B (104, 1) 37 JURISDICTION OF DEPARTMENT OF NATURAL RESOURCES, §455B.172\n\n (12) A deed between a family corporation, partnership, limited partnership, limited liability partnership, or limited liability company as defined in section 428A.2, subsection 15, and its stockholders, partners, or members for the purpose of transferring real property in an incorporation or corporate dissolution or in the organization or dissolution of a partnership, limited partnership, limited liability partnership, or limited liability company under the laws of this state, where the deed is given for no actual consideration other than for shares or for debt securities of the family corporation, partnership, limited partnership, limited liability partnership, or limited liability company.

b. At the time of inspection, any septic tank existing as part of the sewage disposal system shall be opened and have the contents pumped out and disposed of as provided for by rule. In the alternative, the owner may provide evidence of the septic tank being properly pumped out within three years prior to the inspection by a commercial septic tank cleaner licensed by the department which shall include documentation of the size and condition of the tank and its components at the time of such occurrence.

c. If a private sewage disposal system is failing to ensure effective wastewater treatment or is otherwise improperly functioning, the private sewage disposal system shall be renovated to meet current construction standards, as adopted by the department, either by the seller or, by agreement, and within a reasonable time period as determined by the county board of health or the department, by the buyer. If the private sewage disposal system is properly treating the wastewater and not creating an unsanitary condition in the environment at the time of inspection, the system is not required to meet current construction standards.

d. Inspections shall be conducted by an inspector certified by the department.

e. (1) Pursuant to chapter 17A, the department shall adopt certification requirements for inspectors, including training, testing, and fees, and shall establish uniform statewide inspection criteria and an inspection form. The inspector certification training shall include use of the criteria and form. Only a certified inspector may conduct a time-of-transfer inspection.

(2) An inspector’s certification shall be considered current if the inspector has paid initial and renewal fees required to maintain certification, is up-to-date on continuing education units, is in good standing with the department, and has not otherwise been decertified.

(3) The department shall maintain a publicly available list of currently certified inspectors on the department’s internet site. The department shall maintain the list such that an inspector’s name is displayed next to the date that the inspector’s certification first became valid and the date that the inspector’s certification is set to expire.

(4) A certified inspector who fraudulently files a time-of-transfer report is subject to a civil penalty of five thousand dollars and the inspector’s certification shall be suspended for one year.

f. County personnel are eligible to become certified inspectors. A county may set an inspection fee for inspections conducted by certified county personnel. A county shall allow any department certified inspector to provide inspection services under this subsection within the county’s jurisdiction.

g. Following an inspection, the inspection form and any attachments shall be provided to the county board of health and the department for enforcement of any follow-up mandatory system improvement and to the department for record.

h. An inspection is valid for a period of two years for any ownership transfers during that period.

i. This subsection preempts any city or county ordinance related to the inspection of private sewage disposal systems in association with the transfer of ownership of a building. [C66, 71, §455B.3; C73, §455B.31; C75, 77, 79, 81, §135.20, 455B.31; 82 Acts, ch 1199, §9] C83, §455B.172 83 Acts, ch 137, §3; 84 Acts, ch 1121, §3; 85 Acts, ch 176, §2; 87 Acts, ch 225, §112, 113; 90 Acts, ch 1243, §1; 91 Acts, ch 224, §4; 97 Acts, ch 137, §3; 2004 Acts, ch 1086, §74; 2004 Acts, ch 1167, §11; 2005 Acts, ch 153, §2, 3; 2006 Acts, ch 1010, §172, 177; 2008 Acts, ch 1033, §1, 2; 2009 Acts, ch 175, §22, 25; 2010 Acts, ch 1061, §85; 2010 Acts, ch 1120, §1 – 5; 2011 Acts, ch 25, §51; 2023 Acts, ch 150, §1 Referred to in §358.16, 358.22, 384.38, 455B.172A, 455B.188, 558.69\n\nTue Dec 09 22:11:03 2025 Iowa Code 2026, Chapter 455B (104, 1) §455B.172A, JURISDICTION OF DEPARTMENT OF NATURAL RESOURCES 38 \n