The Code of Iowa is the official collection of all general and permanent statutory laws in the state, compiled by the Iowa General Assembly’s Legislative Services Agency (LSA) and republished in an updated electronic edition each late autumn on the legislature’s website.1Iowa Legislature. Iowa Law and Rules It’s free to read, free to search, and organized so you can move from a broad subject down to a specific rule.
Where to Read the Code
The official version lives at legis.iowa.gov, maintained by the LSA.1Iowa Legislature. Iowa Law and Rules You can browse by title and chapter, search by keyword or section number, or download the full Code. This is the starting point for any Iowa statutory research.
Printed volumes still exist and are distributed to state offices, county courthouse law libraries, and university law libraries. Some judicial and administrative proceedings reference the printed edition as the authoritative record.
Official vs. Annotated Editions
The version on the legislature’s website is unannotated: statutory text plus historical notes showing when sections were enacted or amended. Annotated editions, such as West’s Iowa Code Annotated, add citations to court decisions interpreting each statute, references to related administrative rules, and pointers to secondary sources. Those additions help when you need to know how courts have applied a statute, not just what it says. The annotations themselves are editorial, not law.
How the Code Is Organized
Iowa statutes are arranged in a layered structure of titles, chapters, and sections, each numbered and named.2Iowa Legislature. Iowa Code Chapter 2B – Section 2B.12 Titles sit at the top and group related subjects. Title I covers State Sovereignty and Management; Title XVI addresses Criminal Law and Procedure. Chapters inside each title narrow in on topics like traffic regulations, probate, or tax collection. Sections inside each chapter carry the actual legal requirements.
Only laws of a general and permanent nature appear in the Code.1Iowa Legislature. Iowa Law and Rules Temporary measures like annual appropriations, and purely local legislation that doesn’t apply statewide, are excluded. If you’re hunting for a one-time or local measure, the Code is not where it will be.
How to Read an Iowa Code Citation
Iowa statutes use a standard format set by the Code itself: “Iowa Code” followed by a chapter and section number, as in Iowa Code § 321.1.3Iowa Legislature. Iowa Code 2B.17 – Official Legal Publications — Citations The number before the decimal is the chapter; the number after it is the section within that chapter. Inside Iowa publications, “Iowa” can be dropped when the meaning is clear, so you may see “Code § 321.1.”
Many sections break down further. A reference like Iowa Code § 321.1(1)(a) points to a specific subsection and paragraph, which is usually where the concrete rules sit: penalty amounts, licensing requirements, procedural deadlines. When the edition year matters, as it often does in litigation over law that has changed, the year can be added before or after “Iowa Code.”3Iowa Legislature. Iowa Code 2B.17 – Official Legal Publications — Citations
Session laws use a different format. An act from a particular legislative session is cited as the Iowa Acts with the year, chapter or file number, and section number. That distinction matters when you need to trace a current Code section back to the original legislation that created or amended it.
From Bill to Code
Every statute begins as a bill. Once both chambers pass it and the Governor signs it, the new law is first published in the Iowa Acts, which record every act of a legislative session in the order passed, including permanent laws, temporary measures, and joint resolutions.4Iowa Legislature. Iowa Code Chapter 2B – Section 2B.10 The Iowa Acts are the chronological record of a session; the Code is the organized, permanent library.
After the session ends, the LSA folds permanent new laws into the existing Code, assigning each to the appropriate title and chapter and updating any sections the legislature amended or repealed. A new annual edition is published as soon as possible after final adjournment of a regular or special session.2Iowa Legislature. Iowa Code Chapter 2B – Section 2B.12 If you’re reading the Code between sessions, be aware that recent legislation may already be law but not yet integrated into the online text.
Iowa Code vs. Iowa Administrative Code
The Iowa Code and the Iowa Administrative Code are two different books, and knowing which one you need will save time. The Iowa Code holds statutes enacted by the General Assembly. The Iowa Administrative Code holds rules adopted by executive branch agencies to carry out those statutes.5Iowa Legislature. Iowa Administrative Code Both carry the force of law, but administrative rules are subordinate to the statutes that authorize them.
In practice, the legislature sets broad goals and limits in a statute, and the responsible agency writes the detailed rules such as testing standards, reporting requirements, or permit conditions. If a rule conflicts with the statute it implements, the statute controls. For many practical questions (how a program actually operates, what forms are required, what deadlines apply), the answer lives in the Administrative Code even when the authority comes from the Iowa Code. The Administrative Code and the Iowa Administrative Bulletin are available on the General Assembly’s website alongside the Code.
How the Code Fits With Local and Federal Law
State statutes sit between federal law above and local ordinances below.
Local Ordinances
Iowa’s Constitution grants cities and counties home rule authority to govern their local affairs without needing specific permission from the General Assembly for each action.6Iowa Legislature. Constitution of the State of Iowa – Article III, Section 38A That power has a ceiling: a local ordinance cannot be inconsistent with state statute. An ordinance that bans what state law allows, or allows what state law bans, is invalid.7Iowa Legislature. Iowa Legislature Legislative Guide Local governments also cannot levy a tax unless the General Assembly has expressly authorized it. County home rule is narrower than city home rule and remains subject to state laws of statewide concern that uniformly affect every county; when city and county powers conflict within city limits, the city’s authority prevails.
Federal Law
Under the U.S. Constitution’s Supremacy Clause, federal law overrides conflicting state law. Preemption can be explicit, when Congress says federal law displaces state regulation in a given area, or implicit, when it becomes impossible to comply with both at once. Courts start with a presumption that state laws are valid, so preemption requires a genuine conflict or clear Congressional intent to occupy the field. Where a provision of the Iowa Code conflicts with federal law, the federal law controls.