The TTB tested beers and malt beverages for compliance issues. The most commonly found problems, listed in order, were:

1. Alcohol content: under
2. Alcohol content: over
3. Non-mandatory information differs from the COLA
4. Mandatory information is missing
5. Government warning has errors
6. Mandatory information differs from the Certificate of Label Approval (COLA)
7. No COLA
8. Type-size/legibility
9. Mandatory information on wrong label
10. Class, type, or statement of composition is incorrect
11. Prohibited practices