Iowa Has No Windshield Device List, Only a Clear Vision Test

Some states answer this question with a closed list. Florida enumerates what may sit on the windshield and Texas descends to a trunk-lid hinge. Iowa wrote no such list, and the absence can be shown from the chapter rather than assumed. Searching Iowa Code chapter 321 for the word windshield returns four contexts and no others: section 321.438, which requires clear vision and regulates front glass darkness; section 321.439, which requires a device for cleaning rain, snow or other moisture from the windshield; section 321.444, which requires safety glass in doors, windows and windshields; and section 321.374, which directs that school bus inspection seals be affixed to the lower right hand corner of the windshield. There is no square-inch allowance, no AS-1 line reference, and no zone measured from a corner anywhere in the chapter.

So the governing standard is the one sentence in section 321.438(1): a person shall not drive a motor vehicle equipped with a windshield, sidewings, or side or rear windows which do not permit clear vision. That is an officer's judgment call made by looking at the glass, not a measurement, and it is the whole of Iowa's mounting law. Section 321.438(3) adds only that the vehicle must have a windshield at all, in accordance with the safety glass requirement in section 321.444, unless it is a motorcycle or a vehicle within section 321.383 or section 321.115.

The section that people reach for next does not reach a camera. Section 321.363, headed obstruction to driver's view, prohibits driving a vehicle when it is so loaded, or when there are in the front seat such number of persons exceeding three, as to obstruct the view of the driver to the front or sides or to interfere with the driver's control over the driving mechanism. Subsection 2 bars a passenger from riding in a position that interferes with the driver's view or control. Both limbs are about cargo and people. A camera on the glass is not a load and is not a passenger, so section 321.363 does not apply to it.

What has genuinely changed for Iowa dash cam owners is the electronic device law. Section 321.276 was stricken and rewritten by 2025 Acts, chapter 14, sections 9 and 10, and its definition is wide enough to catch a camera. An electronic device means a device powered by electricity, including by a battery, that is capable of being used to compose, send, receive, or read an electronic message, or that is capable of storing, retrieving on-demand, or displaying videos, movies, broadcast television images, visual images, or audio or video data files. The definition excludes a device physically or electronically integrated into a motor vehicle, including an integrated global positioning or navigation system where the destination was entered before the vehicle moved. A suction-cup or adhesive dash cam is not integrated into the vehicle, and it plainly stores and displays video data files.

Use is defined just as broadly. Section 321.276(1)(b) says use includes but is not limited to holding, viewing, or manipulating an electronic device, and section 321.276(2) forbids using one while driving unless the vehicle is at a complete stop off the traveled portion of the roadway, or as far from the center as practicable if it cannot be removed entirely. The voice-activated or hands-free exception in paragraph (a) will not save a dash cam screen, because the definition of that term expressly excludes accessing nonnavigation video content, engaging in a video call, accessing or engaging in video streaming, accessing gaming data, or reading an electronic message or notification. The practical Iowa rule is therefore simple: mount the camera so the glass still permits clear vision, start it before you move, and do not touch or watch it again until you are stopped off the roadway.

One further Iowa provision protects the recording once it exists. Section 321.276(3) says nothing in the section shall be construed to authorize a peace officer to confiscate an electronic device from the driver or occupant of a motor vehicle. And a camera that records audio inside your own car falls within the eavesdropping exemption in section 727.8(3)(a), which covers recording by a sender or recipient of a message or by one who is openly present and participating in or listening to a communication.

8A, subsection 3, paragraph ai. 8A, subsection 6, paragraph w. 276(4)(b) makes it a moving violation for the purposes of chapter 321 and the rules adopted under it, so it reaches the driver's record and not only the wallet. The grace period is over. 276(4)(c) required a peace officer to issue a warning memorandum in lieu of a citation, and that paragraph was repealed on January 1, 2026 by its own terms, so citations have been issued since. 6A supplies homicide or serious injury by vehicle. 492(3)(a) instead authorizes equipment spot inspections where an officer has reasonable grounds to believe violations exist.