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Is NOS illegal in cars?

I was thinking about using NOS in my car. My friend said it wasn’t legal, but I was pretty sure that it was. Is NOS illegal in cars?

avatar
Melanie Mergen · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
In the United States, at the federal level, nitrous oxide (NOS) is not illegal to use in cars. However, laws regulating NOS use can vary from state to state.
In
Maryland
, for example, any vehicle equipped with a power booster system must have a specific decal identifying its use to drive it on a highway.
Other states like
Florida
with statutes relating to vehicles’ noise levels can also bring the use of NOS in cars into question.
In summary, you’ll want to check your local and state laws before using NOS in your own car.
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