CHAPTER 321E
VEHICLES OF EXCESSIVE SIZE AND WEIGHT

  321E.1  Permits by department and local authorities.
  1.  The department and local authorities may in their discretion and upon application and with good cause being shown issue permits for the movement of construction machinery or asphalt repavers being temporarily moved on streets, roads, or highways and for vehicles with indivisible loads which exceed the maximum dimensions and weights specified in sections 321.452 through 321.466, but not to exceed the limitations imposed in this section and sections 321E.2 through 321E.15 except as provided in section 321E.29.
  2.  Vehicles permitted to transport indivisible loads may do any of the following:
  a.  Exceed the width and length limitations specified in sections 321.454 and 321.457 for the purpose of picking up an indivisible load or returning from delivery of the indivisible load.
  b.  Move indivisible special mobile equipment which does not otherwise exceed the maximum dimensions and weights specified in sections 321.452 through 321.466 if the vehicle has an overall width not to exceed nine feet and all other conditions of the vehicle’s permit are met.
  3.  Permits issued may be single-trip, multi-trip, or annual permits. Permits shall be in writing and shall be carried in the cab of the vehicle for which the permit has been issued and shall be available for inspection at all times. The vehicle and load for which the permit has been issued shall be open to inspection by a peace officer or an authorized agent of a permit granting authority.
  4.  When in the judgment of the issuing authority in cities and counties the movement of a vehicle with an indivisible load or construction machinery which exceeds the maximum dimensions and weights will be unduly hazardous to public safety or will cause undue damage to streets, avenues, boulevards, thoroughfares, highways, curbs, sidewalks, trees, or other public or private property, the permit shall be denied and the reasons for denial endorsed on the application. Permits shall designate the days when and routes upon which loads and construction machinery may be moved within a county on other than primary roads.
  5.  Local authorities may allow persons requesting permits under this chapter to do so by means of a telephone or facsimile machine, authorizing payment for the permits to be made upon receipt of an invoice sent to the persons by the local authorities.
[C31, 35, §5067-d7, -d8; C39, §5035.16, 5035.18, 5035.19; C46, 50, 54, 58, 62, 66, §321.467, 321.469, 321.470; C71, 73, 75, 77, 79, 81, §321E.1]
83 Acts, ch 116, §3; 85 Acts, ch 257, §20; 94 Acts, ch 1087, §9, 10; 96 Acts, ch 1089, §5; 96 Acts, ch 1152, §19; 2008 Acts, ch 1124, §9
Referred to in 

  321E.2  Permit-issuing authorities.
  1.  Annual, multi-trip, and single-trip permits shall be issued by the authority responsible for the maintenance of the system of highways or streets. However, the department may issue permits on primary road extensions in cities in conjunction with movements on the rural primary road system. The department may issue an all-system permit under section 321E.8 which is valid for movements on all highways or streets under the jurisdiction of either the state or those local authorities which have indicated in writing to the department those streets or highways for which an all-system permit is not valid. The department may issue annual permits pursuant to section 321E.8A valid only for operation on noninterstate highways in counties stipulated in the permit.
  2.  At the request of a local authority, the department shall issue annual, multi-trip, and single-trip permits that are under the jurisdiction of the local authority.
[C71, 73, 75, 77, 79, 81, §321E.2]
86 Acts, ch 1210, §7; 94 Acts, ch 1087, §11; 96 Acts, ch 1089, §6; 2007 Acts, ch 143, §18
Referred to in 
321E.3 through 321E.6Repealed by 79 Acts, ch 73, §  6. 

  321E.7  Load limits per axle.
  1.  The gross weight on any axle of any vehicle or combination of vehicles traveling under a permit issued in accordance with the provisions of this chapter shall not exceed the maximum axle load prescribed in section 321.463; except that cranes being temporarily moved on streets, roads, or highways may have a gross weight of twenty-four thousand pounds on any single axle; and construction machinery being temporarily moved on streets, roads, or highways may have a gross weight of thirty-six thousand pounds on any single axle equipped with a minimum size twenty-six point five-inch by twenty-five-inch flotation pneumatic tires and a maximum gross weight of twenty thousand pounds on any single axle equipped with minimum size eighteen-inch by twenty-five-inch flotation pneumatic tires, with the department authorized to adopt rules to permit the use of tire sizes and weights within the minimum and maximum specifications provided in this section, provided that the total gross weight of the vehicle or a combination of vehicles does not exceed a maximum of one hundred twenty-six thousand pounds; and except that a manufacturer of machinery or equipment manufactured or assembled in Iowa may be granted a permit for the movement of such machinery or equipment mounted on pneumatic tires with axle loads exceeding the maximum axle load prescribed in section 321.463 for distances not to exceed twenty-five miles at a speed not greater than twenty miles per hour. The movement of such machinery or equipment shall be over a specified route between the place of assembly or manufacture and a storage area, shipping point, proving ground, experimental area, weighing station, or another manufacturing plant.
  2.  The gross weight on any one axle of any vehicle or combination of vehicles traveling under a permit issued in accordance with this chapter shall not exceed the maximum axle load prescribed in section 321.463; except that any one axle on a vehicle or combination of vehicles transporting construction machinery shall be allowed a one thousand pound weight tolerance, provided the total gross weight of the vehicle or combination of vehicles does not exceed the gross weight allowed by the permit.
  3.  Special mobile equipment, as defined in section 321.1, subsection 75, is not subject to the requirements for distance in feet between the extremes of any group of axles or the extreme axles of the vehicle or combination of vehicles as required by this chapter when being moved upon the highways if the operator has a permit issued under this chapter.
  4.  Notwithstanding subsections 1 and 2, a self-propelled implement of husbandry traveling under a permit issued pursuant to section 321E.8A may exceed the maximum axle loads prescribed under section 321.463 only when operated on a noninterstate highway in a county covered under the permit, provided the weight on any one axle does not exceed twenty-five thousand pounds, and provided the current and valid permit is carried in the vehicle. However, a vehicle traveling under a permit issued pursuant to section 321E.8A is not exempt from posted weight limitations on bridges.
[C31, 35, §5067-d7, -d8; C39, §5035.16; C46, 50, 54, 58, 62, 66, §321.467; C71, 73, 75, 77, 79, 81, §321E.7]
83 Acts, ch 116, §4; 96 Acts, ch 1089, §7, 8; 96 Acts, ch 1152, §20; 97 Acts, ch 100, §7; 2003 Acts, ch 8, §20, 29; 2007 Acts, ch 143, §19; 2008 Acts, ch 1124, §10
Referred to in 

  321E.8  Annual permits.
  Subject to the discretion and judgment provided for in section 321E.1, annual permits shall be issued in accordance with the following provisions:
  1.  Vehicles with indivisible loads, or manufactured or mobile homes including appurtenances, having an overall width not to exceed sixteen feet zero inches, an overall length not to exceed one hundred twenty feet zero inches, an overall height not to exceed fifteen feet five inches, and a total gross weight not to exceed eighty thousand pounds, may be moved as follows:
  a.  Vehicles with indivisible loads, or manufactured or mobile homes including appurtenances, having an overall width not to exceed twelve feet five inches, an overall length not to exceed one hundred twenty feet zero inches, and an overall height not to exceed thirteen feet ten inches may be moved for unlimited distances without route approval from the permitting authority.
  b.  Vehicles with indivisible loads, or manufactured or mobile homes including appurtenances, having an overall width not to exceed fourteen feet six inches, an overall length not to exceed one hundred twenty feet zero inches, and an overall height not to exceed fifteen feet five inches may be moved on the interstate highway system and primary highways with more than one lane traveling in each direction for unlimited distances and no more than fifty miles from the point of origin on all other highways without route approval from the permit issuing authority.
  c.  All other vehicles with indivisible loads operating under this subsection shall obtain route approval from the permitting authority.
  d.  Vehicles with indivisible loads may operate under an all-systems permit in compliance with paragraph “a”, “b”, or “c”.
  2.  Vehicles with indivisible loads, or manufactured or mobile homes including appurtenances, having an overall width not to exceed thirteen feet five inches and an overall length not to exceed one hundred twenty feet zero inches may be moved on highways specified by the permitting authority for unlimited distances if the height of the vehicle and load does not exceed fifteen feet five inches and the total gross weight of the vehicle does not exceed one hundred fifty-six thousand pounds. The vehicle owner or operator shall verify with the permitting authority prior to movement of the load that highway conditions have not changed so as to prohibit movement of the vehicle. Any cost to repair damage to highways or highway structures shall be borne by the owner or operator of the vehicle causing the damage. Permitted vehicles under this subsection shall not be allowed to travel on any portion of the interstate highway system. Vehicles with indivisible loads operating under the permit provisions of this subsection may operate under the permit provisions of subsection 1 provided the vehicle and load comply with the limitations described in subsection 1.
  3.  Notwithstanding any other provision of law to the contrary, cranes exceeding the maximum gross weight on any axle as prescribed in section 321.463 and used in the construction of alternative energy facilities may be moved with approval from the permit issuing authority.
[C31, 35, §5067-d7, -d8; C39, §5035.16; C46, 50, 54, 58, 62, 66, §321.467; C71, 73, 75, 77, 79, §321E.3, 321E.8; C81, §321E.8; 82 Acts, ch 1075, §1]
88 Acts, ch 1208, §2; 91 Acts, ch 133, §1; 92 Acts, ch 1173, §1; 97 Acts, ch 100, §8; 97 Acts, ch 104, §25; 99 Acts, ch 13, §20, 29; 2001 Acts, ch 32, §26, 27; 2002 Acts, ch 1063, §36, 55; 2003 Acts, ch 44, §59; 2008 Acts, ch 1124, §11, 40
Referred to in 

  321E.8A  Self-propelled implement of husbandry — annual permit.
  1.  A self-propelled implement of husbandry equipped with flotation tires that is designed to be loaded and operated in the field and used exclusively for the application of organic or inorganic plant food materials, agricultural limestone, or agricultural chemicals, and that, as newly manufactured, exceeds the axle weight limits under section 321.463 when unloaded, may be operated on noninterstate highways in a county pursuant to a permit issued by the department for travel within the county, provided the vehicle does not violate posted weight limitations on bridges. Prior to issuing a permit, the department shall collect a fee of six hundred dollars for each county in which the vehicle will be operated during the period of the permit beginning July 1 and ending June 30, provided that a permit shall not be issued for a vehicle for operation in more than ten counties and the total amount of fees collected for a vehicle for the period of the permit shall not exceed three thousand five hundred dollars. Moneys collected by the department on behalf of the counties in which the vehicle will be operated shall be allotted equally to those counties and deposited in the secondary road funds of those counties. A vehicle for which a permit is issued under this section shall be assigned a permit number that shall be displayed on the door of the vehicle in numbers that contrast sharply in color with the background on which the number is placed, be readily legible during daylight hours from a distance of fifty feet when the vehicle is stationary, and be maintained in a manner that retains the legibility. Only vehicles originally purchased or ordered prior to February 1, 2007, are eligible for a permit. New permits shall not be issued on or after July 1, 2007; however, a permit issued for a vehicle under this section prior to July 1, 2007, may be renewed for that vehicle annually upon payment of the appropriate county fees.
  2.  A vehicle described in subsection 1 shall not be operated on a highway without a permit issued under this section. The owner of a vehicle that is operated in violation of section 321E.7, subsection 4, or this section is subject to a civil penalty of ten thousand dollars, in addition to any other penalties that may apply.
2007 Acts, ch 143, §20; 2008 Acts, ch 1124, §12
Referred to in 

  321E.9  Single-trip permits.
  Subject to the discretion and judgment provided for in section 321E.1, single-trip permits, which may include a round trip to and from a job or delivery site, shall be issued in accordance with the following provisions:
  1.  Vehicles with indivisible loads having an overall width not to exceed forty feet, zero inches, an overall length not to exceed one hundred twenty feet, zero inches, or a total gross weight not to exceed one hundred thousand pounds may be moved, provided the gross weight on any one axle shall not exceed the maximum prescribed in section 321.463, pursuant to rules adopted pursuant to chapter 17A. The height of the vehicles and loads shall be limited only to height limitations of underpasses, bridges, power lines and other established height restrictions on the specified route.
  2.  Vehicles with indivisible loads exceeding the width, length, and total gross weight provided in subsection 1, may be moved in special or emergency situations, provided the permitting authority has reviewed the route and has approved the movement of the vehicle and load. The issuing authority may impose any special restrictions as deemed necessary on movements or exempt movements from the restrictions of section 321E.11 by permit under this subsection.
  3.  Cranes exceeding the maximum gross weight on any axle as prescribed in section 321.463 but not exceeding twenty-four thousand pounds may be moved in accordance with rules adopted pursuant to chapter 17A. Notwithstanding any other provision of law to the contrary, cranes exceeding the maximum gross weight on any axle as prescribed in section 321.463 and used in the construction of alternative energy facilities may be moved with approval from the permit issuing authority.
[C39, §5035.18; C46, 50, 54, 58, 62, 66, §321.469; C71, 73, 75, 77, 79, 81, §321E.9]
91 Acts, ch 133, §2; 94 Acts, ch 1087, §12; 96 Acts, ch 1152, §21; 97 Acts, ch 100, §9; 97 Acts, ch 104, §26, 27; 2008 Acts, ch 1124, §13, 40
Referred to in 

  321E.9A  Multi-trip permits.
  Subject to the discretion and judgment provided for in section 321E.1, a multi-trip permit shall be issued for operation of vehicles, in accordance with the following:
  1.  Vehicles with indivisible loads having an overall length not to exceed one hundred twenty feet, an overall width not to exceed sixteen feet, and of any height may be moved on highways specified by the permitting authority, provided the gross weight on any one axle shall not exceed the maximum prescribed in section 321.463 and the total gross weight is not greater than one hundred fifty-six thousand pounds.
  2.  Vehicles or combinations of vehicles consisting of construction machinery not exceeding the height, length, and width limitations of this section being temporarily moved on highways with a maximum total gross weight limitation and a single axle weight limitation in accordance with section 321E.7 may be moved.
  3.  The department shall adopt rules pursuant to chapter 17A governing the issuance of permits under this section.
96 Acts, ch 1089, §9; 97 Acts, ch 100, §10
Referred to in 

  321E.9B  Special alternative energy multi-trip permit.
  Subject to the discretion and judgment provided for in section 321E.1, a multi-trip permit shall be issued for operation of vehicles in accordance with the following provisions:
  1.  Vehicles with an indivisible load having an overall length not to exceed two hundred twenty-five feet, an overall width not to exceed sixteen feet, a height not to exceed sixteen feet, and a total gross weight not to exceed two hundred fifty-six thousand pounds may be moved on highways specified by the permitting authority to an alternative energy construction site or staging area for alternative energy transportation, provided the gross weight on any one axle shall not exceed twenty thousand pounds.
  2.  The special alternative energy multi-trip permit shall not exceed twelve months in duration.
  3.  The permitting authority shall have discretion to include restrictions and require special considerations, such as responsibility for protection or repair of the roadway and bridges, prior to issuance of the permit.
2008 Acts, ch 1124, §14, 40
Referred to in 

  321E.10  Truck trailers manufactured in Iowa.
  The department or local authorities may upon application issue annual trip permits for the movement of truck trailers manufactured or assembled in this state that exceed the maximum length specified in section 321.457 and the maximum width specified in section 321.454. Movement of the truck trailers shall be solely for the purpose of delivery or transfer from the point of manufacture or assembly to another point of manufacture or assembly within the state or to a point outside the state, shall be only on roadways of twenty-four feet or more in width or on four-lane highways, shall be on the most direct route necessary for such movement, and shall display the special plates designated in section 321.57. All truck trailers under permit for such movement shall not contain freight or additional load. A vehicle or combination of two or more vehicles inclusive of front and rear bumpers, including towing units, involved in the movement of truck trailers shall not exceed an overall width of ten feet. Vehicles or combinations shall be distinctly marked on both the front and rear of the unit in a manner the director of transportation designates to indicate that the vehicles or combinations are being moved for delivery or transfer purposes only.
  Permits issued under the provisions of this section shall be in writing and shall be carried in the cabs of the vehicles for which the permits have been issued and shall be available for inspection at all times. The vehicles for which the permits have been issued shall be open to inspection by any peace officer or to any authorized agent of any permit granting authority.
[C31, 35, §5067-d7, -d8; C39, §5035.16; C46, 50, 54, 58, 62, 66, §321.467; C71, 73, 75, 77, 79, 81, §321E.10]
83 Acts, ch 116, §5; 92 Acts, ch 1100, §5
Referred to in 

  321E.11  Daylight movement only — exceptions — holidays.
  1.  Movements by permit in accordance with this chapter shall be permitted only during the hours from thirty minutes prior to sunrise to thirty minutes following sunset unless the issuing authority determines that the movement can be better accomplished at another period of time because of traffic volume conditions or the vehicle subject to the permit has an overall length not to exceed one hundred feet, an overall width not to exceed eleven feet, and an overall height not to exceed fourteen feet, four inches, and the permit requires the vehicle to operate only on those highways designated by the department. Additional safety lighting and escorts may be required for movement at night.
  2.  Except as provided in section 321.457, no movement by permit shall be permitted on holidays, after twelve o’clock noon on days preceding holidays and holiday weekends, or special events when abnormally high traffic volumes can be expected. Such restrictions shall not be applicable to urban transit systems as defined in section 321.19, subsection 2.
  3.  For the purposes of this chapter, “holidays” shall include Memorial Day, Independence Day, and Labor Day.
  4.  A person who violates this section commits a simple misdemeanor.
[C71, 73, 75, 77, 79, 81, §321E.11]
94 Acts, ch 1087, §13; 95 Acts, ch 67, §27; 95 Acts, ch 118, §28; 97 Acts, ch 104, §28; 2010 Acts, ch 1061, §121; 2010 Acts, ch 1140, §21
Referred to in 

  321E.12  Registration must be consistent.
  A vehicle traveling under permit shall be properly registered for the gross weight of the vehicle and load. A trip permit issued according to section 326.23 shall not be used in lieu of the registration provided for in this section. A person owning special mobile equipment may use a transport vehicle registered for the gross weight of the transport without a load. Vehicles, while being used for the transportation of buildings, except mobile homes and factory-built structures, may be registered for the combined gross weight of the vehicle and load on a single-trip basis. The fee is five cents per ton exceeding the weight registered under section 321.122 per mile of travel. Fees shall not be prorated for fractions of miles. This provision does not exempt these vehicles from any other provision of this chapter.
[C71, 73, 75, 77, 79, 81, §321E.12; 82 Acts, ch 1143, §1]
99 Acts, ch 13, §21, 29; 2005 Acts, ch 8, §38
Referred to in 

  321E.13  Financial responsibility.
  Prior to the issuance of any permit, the applicant for a permit shall be required to file proof of financial responsibility or to post a bond with the issuing authority. The amount of the bond shall be determined by the issuing authority and shall be used as security for repair or replacement of official signs, signals, and roadway foundations, surfaces, or structures which may be damaged or destroyed during the movement of a vehicle and load operating under the permit. The duration of the bond shall be determined by the issuing authority for a period not to exceed one year.
[C71, 73, 75, 77, 79, 81, §321E.13]
Referred to in 

  321E.14  Fees for permits.
  1.  The department or local authorities issuing permits shall charge a fee of twenty-five dollars for an annual permit issued under section 321E.8, subsection 1, a fee of three hundred dollars for an annual permit issued under section 321E.8, subsection 2, a fee of two hundred dollars for a multi-trip permit issued under section 321E.9A, a fee of six hundred dollars for a special alternative energy multi-trip permit issued under section 321E.9B, and a fee of ten dollars for a single-trip permit, and shall determine charges for special permits issued pursuant to section 321E.29 by rules adopted pursuant to chapter 17A. Fees for the movement of buildings, parts of buildings, or unusual vehicles or loads may be increased to cover the costs of inspections by the issuing authority. A fee not to exceed two hundred fifty dollars per day or a prorated fraction of that fee per person and car for escort service may be charged when requested or when required under this chapter. Proration of escort fees between state and local authorities when more than one governmental authority provides or is required to provide escort for a movement during the period of a day shall be determined by rule under section 321E.15. The department and local authorities may charge a permit applicant for the cost of trimming trees and removal and replacement of natural obstructions or official signs and signals or other public or private property required to be removed during the movement of a vehicle and load. In addition to the fees provided in this section, the annual fee for a permit for special mobile equipment, as defined in section 321.1, subsection 75, operated pursuant to section 321E.7, subsection 3, with a combined gross weight up to and including eighty thousand pounds shall be twenty-five dollars and for a combined gross weight exceeding eighty thousand pounds, fifty dollars.
  2.  The annual fee for an all-system permit is one hundred twenty dollars which shall be deposited in the road use tax fund.
[C71, 73, 75, 77, 79, 81, §321E.14]
83 Acts, ch 116, §6; 86 Acts, ch 1210, §8; 87 Acts, ch 186, §11; 91 Acts, ch 133, §3; 96 Acts, ch 1089, §10; 97 Acts, ch 23, §34; 97 Acts, ch 100, §11; 2001 Acts, ch 32, §28; 2002 Acts, ch 1063, §37; 2008 Acts, ch 1124, §15, 40
Referred to in 

  321E.15  Rules made available.
  The department may adopt and make available upon request to interested parties printed rules and regulations necessary for the movement by permit of vehicles and indivisible loads under the provisions of this chapter. No rule or regulation shall be adopted without prior notice to city and county officials and without a hearing on the proposed rule or regulation. All rules and regulations adopted shall have due regard for the safety of the traveling public and the protection of the highway surfaces and structures. Rules and regulations for permit travel on the interstate system shall be consistent with the federal requirements for the system.
[C71, 73, 75, 77, 79, 81, §321E.15]
Referred to in 

  321E.16  Violations — penalties.
  A person who violates a provision of a permit issued pursuant to this chapter or rules adopted under section 321E.15, other than a provision relating to weight, shall be subject to a scheduled fine under section 805.8A, subsection 12, paragraph “f”. The fine for violation of the weight allowed by a permit shall be based upon the difference between the actual weight of the vehicle and load and the maximum allowable by permit in accordance with section 321.463. If a vehicle with an indivisible load traveling under permit is found to be in violation of weight limitations, the vehicle operator shall be allowed a reasonable amount of time to remove any ice, mud, snow, and other weight attributable to climatic conditions accumulated along the route prior to application of the penalties prescribed in section 321.463.
[C71, 73, 75, 77, 79, 81, §321E.16]
83 Acts, ch 116, §7; 90 Acts, ch 1099, §1; 90 Acts, ch 1233, §19; 96 Acts, ch 1090, §8; 2001 Acts, ch 137, §5
Referred to in 

  321E.17  Five or more violations.
  Proof of imposition of penalties on five or more occasions for violation of sections 321.454, 321.456, 321.457, 321.463, or 321E.16 or any combination of penalties for violation of said sections totaling five or more incurred during any twelve-month period with respect to the operation of one or more vehicles by any one permit holder, whether operated personally or through agents, servants, or employees of the permit holder shall constitute prima facie evidence that the permit holder has willfully operated or caused to be operated a vehicle or vehicles in violation of this chapter.
[C71, 73, 75, 77, 79, 81, §321E.17]

  321E.18  Overall operations considered.
  In any proceeding brought under this chapter, the issuing authority shall consider evidence relating to the character and gravity of the violations and the extent of the operations of any vehicles by or on behalf of the permit holder upon the public highways of this state, which did not involve any violations.
[C71, 73, 75, 77, 79, 81, §321E.18]

  321E.19  Permit suspended, changed, or revoked.
  Upon complaint by local authorities or on the department’s own initiative and after notice and hearing before one or more members of the permit issuing body in the case of local authorities or the department of inspections and appeals for permits issued by the state department of transportation, permit privileges under this chapter may be suspended, changed, or revoked in whole or in part by the issuing authority for willful failure to comply with a provision of this chapter, a rule adopted under this chapter, or a term, condition, or limitation of the permit.
[C71, 73, 75, 77, 79, 81, §321E.19]
83 Acts, ch 116, §8; 89 Acts, ch 273, §2

  321E.20  Suspension period.
  Whenever the issuing authority finds from the evidence adduced at hearing that a permit holder has willfully operated or caused to be operated a vehicle or vehicles in violation of this chapter, the authority may enter an order suspending, modifying, or revoking the permit in whole or in part at its discretion for a period not to exceed one hundred eighty days. If the issuing authority finds in a subsequent proceeding within twelve months from the date of the initial suspension, modification, or revocation that a permit holder has again willfully operated in violation of this chapter, the issuing authority shall order suspension, modification, or revocation of permit privileges in whole or in part for a period not to exceed two years.
[C71, 73, 75, 77, 79, 81, §321E.20]
83 Acts, ch 116, §9

  321E.21  Process on nonresidents.
  Any person using and operating a vehicle over the highways of this state who is a nonresident of this state or at the time a cause for hearing arises under this chapter is a resident of the state but subsequently becomes a nonresident of this state, shall be deemed to have appointed the secretary of state of the state of Iowa to be the person’s lawful attorney. Any legal processes in any proceeding brought against the person under this chapter shall be served on the secretary of state. The use and operation by the person shall be signification of the person’s agreement that any such process against the person which is so served shall be of the same legal force and validity as though served upon the person personally.
[C71, 73, 75, 77, 79, 81, §321E.21]

  321E.22  Service of process.
  Service of such process shall be made by serving a copy upon or filing a copy in the office of the secretary of state. The service shall be sufficient service upon the person if notice of the service and a copy of the process are within ten days sent by registered mail by the department general counsel to the permit holder at the last known address of said permit holder. An affidavit of compliance therewith of the department general counsel shall be appended to the summons. The issuing authority may order such continuances as may be necessary to afford the permit holder reasonable opportunity to defend the action. The secretary of state shall keep a record of all such processes which shall show the day and hour of such service.
[C71, 73, 75, 77, 79, 81, §321E.22]

  321E.23  Failure to receive copy of process.
  When a final order is entered against any permit holder who did not receive notice of service and a copy of the process by registered mail, the permit holder shall within six months after the entry of the order appear before the issuing authority and file a verified statement showing that the permit holder did not receive such notice of service and the copy of the process. The permit holder shall further show that the permit holder has a good and substantial defense to the action and may appear and answer the allegations made against the permit holder. Thereupon, the proceedings may be had as if the permit holder had appeared in due time and no order had been entered. If it appears at the hearing that the order ought not to have been entered, the order may be set aside, altered, or amended as shall appear just; otherwise it shall be ordered to stand affirmed against such permit holder.
[C71, 73, 75, 77, 79, 81, §321E.23]

  321E.24  Warning device on long loads.
  Any vehicle and load which exceed the limits provided in section 321.457 and in excess of a length of seventy-five feet shall carry a warning device clearly visible to a motorist approaching from the rear for a distance of five hundred feet.
[C71, 73, 75, 77, 79, 81, §321E.24]
83 Acts, ch 116, §10

  321E.25  Use of highways of interstate system.
  Use of the national system of interstate and defense highways under the provisions of this chapter shall be restricted by regulation and other appropriate action of the department in such a manner as to not be in conflict with the applicable provisions of section 127, Title 23, United States Code.
[C71, 73, 75, 77, 79, 81, §321E.25]
  321E.26  Repealed by 97 Acts, ch 104, §  60.  See §  321E.34. 

  321E.27  Definition.
  As used in this chapter, unless the context otherwise requires, “department” means the state department of transportation.
[C75, 77, 79, 81, §321E.27]

  321E.28  Permits for manufactured or mobile homes or factory-built structures.
  1.  The department and local authorities may, upon application and with good cause shown, issue single-trip, multi-trip, or annual permits for the movement of manufactured or mobile homes or factory-built structures of widths including appurtenances exceeding twelve feet five inches subject to the following conditions:
  a.  Permits shall be issued only when the movement can be safely accomplished without causing unnecessary traffic congestion.
  b.  Permits issued under this section shall specify the route over which the manufactured or mobile home or factory-built structure shall be moved, and wherever possible, the department and local authorities shall specify highways having a roadway at least twenty-four feet in width.
  c.  Single-trip permits may be issued by the department or local authorities contingent upon favorable road and weather conditions.
  d.  A permit may be issued to allow the movement of a manufactured or mobile home or factory-built structure on a fully controlled-access, divided, multilaned highway.
  2.  For the purposes of this section, “factory-built structure” means a structure which is wholly or in substantial part, made, fabricated, formed, or assembled in manufacturing facilities for installation or assembly and installation on a building site and which is temporarily moved on its own axles.
[C77, 79, 81, §321E.28; 81 Acts, ch 112, §1]
83 Acts, ch 74, §1; 88 Acts, ch 1208, §3; 91 Acts, ch 133, §4; 92 Acts, ch 1100, §6; 96 Acts, ch 1089, §11; 2001 Acts, ch 153, §15; 2001 Acts, ch 176, §80; 2010 Acts, ch 1061, §180
Referred to in 

  321E.29  Excess size divisible load permits.
  Vehicles or a combination of vehicles with divisible loads in excess of the width, length, or height requirements of chapter 321 may be moved on the highways of this state if the department or issuing authority determines there is a special or emergency situation which warrants the issuance of a special permit. The combined gross weight or gross weight on any one axle or group of axles may exceed the limits established in section 321.463, subject to the limits and routes established by the issuing authority. Permits may be issued for vehicles with divisible loads of hay, straw or stover without a finding of special or emergency situations, if the movement meets the requirements of this chapter.
[C79, 81, §321E.29]
Referred to in 

  321E.29A  Raw milk transporters.
  The department or a local authority may issue annual permits authorizing a raw milk transporter to transport by motor truck raw milk to or from a milk plant, receiving station, or transfer station. The combined gross weight or gross weight on any axle or groups of axles of the motor truck shall not exceed the limits established under section 321.463. The issuing authority may specify weight limits or routes for each raw milk transporter or establish weight limits or routes under section 321E.8.
98 Acts, ch 1103, §1
Referred to in 
  321E.30  Repealed by 96 Acts, ch 1152, §  26. 

  321E.31  Permit for moving certain manufactured or mobile homes.
  All manufactured or mobile homes moved in this state which are registered in another state shall only be moved on the highways with a permit issued under sections 321E.8 and 321E.28.
[82 Acts, ch 1251, §19]
2001 Acts, ch 153, §15; 2001 Acts, ch 176, §80

  321E.32  Movement of structures.
  The weight limits on axles used for the movement of physical structures and buildings shall be subject to the same weight limits which are placed on all other axles. However, when physical structures or buildings are moved and the axles under the load are five feet or more apart, each axle shall be considered a separate axle in determining the axle weight limitations provided by law.
88 Acts, ch 1208, §4

  321E.33  Oversize permit agreement.
  The director of transportation may, subject to the approval of the transportation commission, enter into agreements on behalf of this state with authorized representatives of other states concerning the movement of vehicles of excess size and weight. The director of transportation may enter into and the state department of transportation may become a member of an agreement allowing other states to issue permits authorizing the movement of vehicles of excess size and weight on state primary roads, collect established permit fees on behalf of the department, and exchange appropriate information. The director of transportation may adopt rules pursuant to chapter 17A to implement an agreement.
  Copies of any agreement shall be filed with the secretary of the senate and the chief clerk of the house.
88 Acts, ch 1208, §5

  321E.34  Escort requirements.
  1.  An operator of an escort vehicle, serving as an escort in the movement of vehicles and loads of excess size and weight under permits required by this chapter shall have a driver’s license as defined in section 321.1 valid for the operation of the escort vehicle.
  2.  Vehicles under permit, the width of which, including any load, exceeds that prescribed in section 321.454 but does not exceed fourteen feet six inches including appurtenances, may be moved on two-lane highways of this state without an escort if the highway being traversed has a minimum lane width of twelve feet and a sufficient shoulder width and if an amber revolving light or strobe light is displayed on the power unit and on the rear extremity of the vehicle or load. In addition, vehicles moving under permit, including any load, with an overall width not exceeding sixteen feet six inches may be moved on an interstate or four-lane highway of this state without an escort if an amber revolving light or strobe light is displayed on the power unit and on the rear extremity of the vehicle or load.
  3.  The department shall adopt rules pursuant to chapter 17A for all escort requirements other than those exempted in subsection 2. The rules shall include escorting requirements for annual permits, single-trip permits, multi-trip permits, special or emergency situations, length, height, and weight.
97 Acts, ch 104, §29; 98 Acts, ch 1073, §9