Arizona Revised Statutes: How State Law Is Organized and Accessed

Arizona's statutory code is the working document of state governance — a codified record of every law the Legislature has enacted and currently keeps in force. This page explains how the Arizona Revised Statutes are structured, how they are updated, and how the code's organization shapes everything from a landlord-tenant dispute in Tucson to a regulatory question at a state agency. Understanding the code's architecture is prerequisite to using it accurately.

Definition and scope

The Arizona Revised Statutes (A.R.S.) are the permanent, codified laws of the State of Arizona, maintained by the Arizona Legislative Council under the authority of the Arizona State Legislature. The code contains 49 active titles, each grouping statutes by subject area — Title 13 covers criminal law, Title 33 covers property, Title 36 covers public health, and so on. The Legislative Council assigns title and section numbers, integrates newly enacted session laws into the appropriate locations, and publishes the result on the official Arizona Legislature website at azleg.gov.

The A.R.S. is state law only. It does not incorporate federal statutes, tribal law, or municipal ordinances. Federal law governs through U.S. Code and agency regulations published in the Code of Federal Regulations; tribal governments within Arizona operate under sovereign authority that intersects with state law in specific ways described elsewhere in Arizona Tribal Nations and State Relations. Cities and counties adopt local codes that must be consistent with A.R.S. but are not part of it.

Scope boundary: The A.R.S. covers state-level civil, criminal, regulatory, and procedural law enacted by the Arizona Legislature. It does not cover the Arizona State Constitution, administrative rules (which live in the Arizona Administrative Code, published by the Secretary of State), court procedural rules (published by the Arizona Supreme Court), or federal law applicable in Arizona. Practitioners working across all those layers simultaneously — which describes most regulatory work — cannot treat the A.R.S. as a self-contained universe.

How it works

The legislative process produces session laws. After the Governor signs a bill, the enrolled act is a session law, designated by chapter number and legislative session year. The Arizona Legislative Council then reviews that session law and codifies it — inserting new text, amending existing sections, or repealing sections as directed — into the appropriate A.R.S. title. The codified result is what appears at azleg.gov.

The process follows a recognizable hierarchy:

  1. Title — broadest organizational unit (e.g., Title 28: Transportation)
  2. Chapter — subdivision within a title grouping related subjects
  3. Article — further subdivision within a chapter
  4. Section — the individual statutory provision, cited as A.R.S. § [number]

A section citation such as A.R.S. § 33-1318 pinpoints a single provision within Title 33 (Property), and every cross-reference in the code uses that format. Courts, agencies, and practitioners cite to sections, not chapters or titles, which is why section numbers are the primary navigation unit.

The Arizona Legislative Council updates the online code continuously after each legislative session. The official online version at azleg.gov reflects current law as codified; it is the same source used by the Arizona Attorney General when issuing formal opinions and by the Arizona Superior Courts in case citations.

Common scenarios

The A.R.S. surfaces in everyday life more often than most people expect. A few representative situations show how the code's structure becomes practically relevant:

For deeper context on how Arizona's governmental institutions use and are bound by the A.R.S., the Arizona Government Authority provides structured coverage of state agencies, elected offices, and how statutory authority flows through the executive branch. It is a useful companion when the question is not just what a statute says but which agency administers it.

Decision boundaries

Knowing whether an A.R.S. section applies — or whether something else governs — is often the actual challenge. Three distinctions clarify the boundary:

A.R.S. vs. Arizona Administrative Code (A.A.C.): The Legislature delegates rulemaking authority to agencies; those rules live in the A.A.C., not the A.R.S. The statute defines the scope of agency authority; the A.A.C. fills in operational details. When an agency rule appears to conflict with a statute, the statute controls (Arizona Legislative Council, Drafting Manual).

A.R.S. vs. U.S. Code: Under the Supremacy Clause of the U.S. Constitution (Article VI), valid federal law preempts conflicting state statutes. Immigration, bankruptcy, and patent law are exclusively federal; employment law, environmental regulation, and consumer protection involve layered state and federal frameworks where both codes apply simultaneously.

Current text vs. session law history: The codified A.R.S. reflects law as amended through the most recent session. If a case or transaction turns on what the law said at a specific earlier date, the relevant session law chapter — not the current codified text — governs. The Arizona Secretary of State archives chaptered session laws by year.

For a broad orientation to how Arizona's legal and governmental structure fits together from the Arizona State Authority home, the statutory code is one layer of a system that also includes the constitution, administrative rules, and judicial decisions interpreting both.

References