Food from an unapproved supplier, unsafe or spoiled food, missing shellfish harvest tags, or raw fish without required parasite destruction.
Handwash sink missing, blocked, or used for other purposes, or missing soap, towels, or the handwash sign.
Water not safe, or hot (100°F) and cold water not available under pressure.
Dirty wiping cloths not stored in sanitizer, or soiled linens handled improperly.
Surfaces that touch food — cutting boards, ice bins, dish racks — soiled or not sanitized.