The Code of Federal Regulations -LRB- NUMBER@1 CFR -LSB- 4-1-03 Edition -RSB- § NUMBER@2 Alcohol content -RRB- requires that liquor labels must state the percentage of alcohol by volume .

LOCATION@1 Federal regulation -LRB- CFR NUMBER@1 NUMBER@2 Alcohol Content -RRB- requires that liquor labels state the percentage alcohol by volume -LRB- sometimes abbreviated ABV -RRB- .
