Iowa License Plate Reader Laws (2026)

Iowa has one provision written specifically for license plate readers, and it is about deleting data. Iowa Code § 321P.4 requires the operator of a plate reader to permanently delete captured plate images and accompanying data no later than 30 days after capture. Law enforcement may keep copies relevant to an ongoing criminal case or investigation. The section sits in the chapter on speed cameras, and we found no other Iowa statute on plate reader use, sharing or audits in the chapters we checked.

Information reviewed September 30, 2026.

For related pages, see the Iowa entry in the state comparison, the ALPR laws hub, Are Flock cameras legal?, What are Flock cameras?, and our Iowa surveillance camera laws guide.

Is there an Iowa law on license plate readers?

Yes, but a narrow one. Iowa Code § 321P.4, added by 2024 Acts, chapter 1181, section 4, says the operator of an automatic registration plate reader or its associated storage device "shall permanently delete from the plate reader and storage device, as applicable, every image of a vehicle registration plate captured by the plate reader, and any other accompanying data, no later than thirty days after the image was captured." We read the 2026 Code text of the section in full. It has four subsections.

The 2026 Code publication we opened is dated December 2025, before the 2026 legislative session, so it does not incorporate 2026 acts.

Who has to delete the data?

The duty binds the "operator." The section defines a plate reader as "a camera or other optical device designed or programmed to automatically detect a vehicle's registration plate," or to automatically capture or store an image of a plate and accompanying data. Nothing in that definition is limited to government devices, so the text reaches private operators as well as public ones.

Can police keep the data longer than 30 days?

The section provides that an image and data "may be copied and stored by a law enforcement agency if the image and data are relevant to an ongoing criminal case or investigation." Those copies are held under the agency's evidence retention policies and fall outside the 30-day rule.

What is the penalty?

A violation of the deletion duty is a simple misdemeanor.

Why does the statute sit in the speed-camera chapter?

Section 321P.4 is part of chapter 321P, titled Automated Traffic Enforcement (2024 Acts, chapter 1181). The rest of the chapter, sections 321P.1 to 321P.3 and 321P.5 to 321P.9, regulates local speed-camera systems. The chapter's own definition of "system" is speed-camera specific: a camera or optical device "designed to work in conjunction with a speed measuring device." So the plate reader provision is a rule about a different technology placed in that chapter, and the rest of the chapter is not a plate reader regime.

What does Iowa law not say about plate readers?

In section 321P.4, and elsewhere in the chapters we opened, we found no list of permitted uses, no rule on sharing with other agencies or with out-of-state or federal entities, no logging or audit requirement, and no public-records rule for plate readers. Our check of the chapters is limited, so read this as a description of what we searched.

We opened and scanned these chapters of the 2026 Code: 321P (Automated Traffic Enforcement, in full), 321 (Motor Vehicles and Law of the Road), 22 (Examination of Public Records), 80 (Department of Public Safety), 808 (Search and Seizure), 692 (Criminal History and Intelligence Data), and, with lower relevance, 321J, 321A, 80F, 692A, 321K and 321L. Keyword scans for plate reader and license plate terms returned no hits outside section 321P.4. Iowa's Code usually says registration plate, so those scans could miss provisions; one we found by reading is § 321P.9, which limits speed cameras to recording the rear of a vehicle and its registration plate while the vehicle is used to commit an alleged violation. Chapter 692 has general rules that may reach compiled plate reader data, although we found no court or official ruling applying them to plate readers. It defines intelligence data as information on identifiable individuals compiled in an effort to anticipate, prevent, or monitor possible criminal activity. Under § 692.8A, a criminal justice agency or peace officer may release intelligence data outside the agency only for official purposes, and the agency must keep a list of recipients with the date and purpose of each release; intelligence data is a confidential record under § 22.7(55). Senate File 2284, a 2026 bill that did not become law, used nearly the same wording to describe historical plate reader location data.

One general law has been read to reach local plate reader policies, in the opposite direction from some other states. Iowa Code § 27A.4 bars a city or county, including its police department, from adopting or enforcing a policy, or taking any other action, under which it prohibits or discourages the enforcement of immigration laws. A local government that a court finds, in an action brought by the Attorney General, to have intentionally violated the chapter loses eligibility for state funds. According to Iowa Public Radio and The Daily Iowan, the Iowa Attorney General's Office wrote to Coralville that its plate reader policy barring use of Flock data solely for immigration purposes violated that section, and the Coralville City Council voted 3 to 1 on February 24, 2026 to end its Flock contract. We did not open the letter itself. The Iowa Consumer Data Protection Act, chapter 715D, covers personal data, including precise geolocation, held by larger businesses but does not apply to the state or local governments; we found nothing applying it to plate readers. We did not open chapter 715C, toll and other transportation chapters, or the Iowa Administrative Code rules of the Department of Transportation and Department of Public Safety. Our search does not establish that Iowa has no other law that reaches plate readers.

Can I request Iowa plate reader data as a public record?

We could not resolve this. Chapter 22 of the 2026 Code has no occurrence of the terms plate reader or license plate, so it has no plate reader-specific exemption or rule. Whether plate reader data is a public record, or falls within a general exemption such as the one for peace officers' investigative reports in § 22.7(5) or for intelligence data in § 22.7(55), is unresolved in our research, because we found no Attorney General opinion, court ruling or Iowa Public Information Board decision addressing it.

Did the Iowa Legislature consider plate reader bills in 2026?

Two introduced bills were read in full. Senate File 2284, from the Transportation Committee, would add a subsection (2A) to section 321P.4 barring the sharing of historical ALPR location data with nongovernmental third parties, extend the simple-misdemeanor penalty, and address noise cameras. House File 2556, as introduced, would create a chapter 321Q, with findings citing the Fourth Amendment and article I, section 8 of the Iowa Constitution, a ban on any use by government entities and those acting for them (its findings mention warrant-based exceptions, but the introduced text lists none), a rule excluding plate reader evidence, and a private right of action. These describe introduced text, not law.

The official bill history shows how close SF 2284 came. The Senate passed it 30 to 15 on March 10, 2026. On April 16 the House passed it 77 to 11 with an amendment that rewrote the plate reader provisions: a city or county would have needed an ordinance before plate readers could be used there, readers would have needed Department of Public Safety approval, searches would have required a case or call number and a search log audited at least every four months, sharing of copied data would have been limited, facial recognition would have been banned, and § 321P.4 would have been replaced by a new 30-day deletion rule. The Senate amended that version and passed the bill again 31 to 9 on April 30. The House received the Senate amendment on May 1 and took no further action before the 2026 session adjourned in early May, and the bill is not on the Legislature's list of 2026 enrolled bills. None of it became law. Iowa Public Radio reported on September 23, 2026, quoting the ACLU of Iowa, that six ALPR-related bills were introduced in the 2026 session and none was enacted. The 2026 Code text of § 321P.4 that we opened shows no amendment, but as noted it predates the session.

What have Iowa courts said about plate readers?

We found no Iowa court decision on plate reader use. Searches of the Iowa courts site, CourtListener and Justia returned only unrelated plate-obstruction stop cases, so this is a statement about our search.

Where are plate readers reported in Iowa?

This list is not complete. An Iowa Public Radio report dated August 27, 2026 is the source for our record marking the Indianola Police Department deployment as paused as of August 17, 2026. A news report on Waukee is the source for our record marking the Waukee Police Department deployment as ended as of August 14, 2026. Both records rest on news reports. We did not open council text and did not find an Iowa municipal ALPR ordinance in official council records.

How can I check my local system?

Because the state deletion rule applies to the operator, whether public or private, a reasonable first question for a local agency or business is how long it keeps captured images and who decides deletion. Ask an agency for its written policy and its vendor contract as well. For the technology itself, see What are Flock cameras?.

Frequently Asked Questions

Does Iowa have a license plate reader law?

Iowa Code § 321P.4 requires the operator of a plate reader to permanently delete captured images and accompanying data within 30 days. It is the only ALPR-specific provision we found, and it sits in the speed-camera chapter.

How long can Iowa keep license plate reader data?

No more than 30 days after capture under § 321P.4, except that a law enforcement agency may copy and store an image and data relevant to an ongoing criminal case or investigation.

Does the Iowa law apply to private companies?

The deletion duty binds the operator, and the definition of a plate reader is not limited to government devices, so the text reaches private operators.

What happens if an operator does not delete the data?

A violation of the deletion duty is a simple misdemeanor under the section.

Did Iowa pass a plate reader bill in 2026?

No. Senate File 2284, which would have required local ordinances, search logs and audits, passed both chambers in different versions, but the House did not act on the Senate's final amendment before the session adjourned, and it is not among the 2026 enrolled bills. Iowa Public Radio, quoting the ACLU of Iowa, reported that none of six ALPR-related bills introduced in 2026 was enacted.

Have Iowa courts ruled on plate readers?

We found no Iowa decision on plate reader use in our searches of the state courts site, CourtListener and Justia.