SR-22 insurance (high-risk insurance) is required by the Washington State Department of Licensing (DOL) with DUI, Physical Control, Reckless Driving convictions or an administrative suspension/revocation. It is required for three (3) years.
If you lose the civil administrative DOL hearing from your DOL arrest you will be required to have SR-22. Negligent Driving 1st Degree and Deferred Prosecutions are not required to have it. Although, if you got a reduction to Negligent Driving and still lost the DOL hearing, you will be required to have it. Deferred Prosecution cure any lost at the DOL hearing (except for refusals).