PDFWAC 314-24-050
Alcoholic content.
No wine shall exceed twenty-four percent of alcohol by volume at 60 degrees Fahrenheit, calculated from the distillate.
Label tolerance:
(1) The alcoholic content of wines containing in excess of fourteen percent of alcohol by volume shall be within one percent plus or minus of the label claim, but not to exceed the prescribed 24% limitation. In the event a maximum range of two percent is stated on the label, the alcoholic content must be within the stated range.
(2) The alcoholic content of wines containing less than fourteen percent of alcohol by volume shall be within one and one-half percent plus or minus of the label claim. In the event a maximum range of three percent is stated on the label, the alcoholic content must be within the stated range.