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ARIZONA STATE SENATE
Fifty-Seventh Legislature, Second Regular Session
PFAS; firefighting foam; prohibition
Purpose
Prohibits a person, local government or state agency from discharging or using class B firefighting foam that contains intentionally added PFAS chemicals for any purpose, unless required by federal regulation.
Background
Laws 2019, Chapter 222 prohibits a person, local government or state agency from discharging or using class B firefighting foam that contains intentionally added PFAS chemicals for training or testing purposes unless required by law or federal regulation or if a testing facility using the foam for testing purposes implements appropriate containment, treatment and disposal measures to prevent uncontrolled releases into the environment. The outlined prohibition on class B firefighting foam containing PFAS chemicals does not restrict the manufacture, sale or distribution of class B firefighting foam that contains intentionally added PFAS chemicals or the discharge or other use of class B firefighting foam in emergency firefighting or fire prevention operations.
Class B firefighting foam means foam designed to extinguish a fire that involves a flammable liquid. PFAS chemicals means perfluoroalkyl and polyfluoroalkyl substances that are a class of fluorinated organic chemicals containing at least one fully fluorinated carbon atom, that are designed to be fully functional in class B firefighting foam formulations and that are used as a firefighting agent.
There is no anticipated fiscal impact to the state General Fund associated with this legislation.
Provisions
1. Expands the prohibition on a person, local government or state agency discharging or using class B firefighting foam containing intentionally added PFAS chemicals to apply to any purpose, rather than only training purposes, unless required by federal regulation.
2. Exempts the owner or operator of a public airport from the outlined prohibition on class B firefighting foam containing PFAS chemicals until January 1, 2031.
3. Removes the stipulation that the outlined prohibition on class B firefighting foam containing PFAS chemicals does not restrict the manufacture, sale or distribution of class B firefighting foam that contains intentionally added PFAS chemicals or the discharge or other use of class B firefighting foam in emergency firefighting or fire prevention operations.
4. Defines public airport as an airport that is owned by a political subdivision of the state or that is otherwise open to the public.
5. Makes technical and conforming changes.
6. Becomes effective on the general effective date.
House Action
PSLE 1/26/26 DP 15-0-0-0
3rd Read 3/5/26 50-0-9-0-1
Prepared by Senate Research
March 22, 2026
AN/ci