The 3-1-1 rule enforced by Etihad Airways for carry-on baggage outlines strict security limits regarding liquid, gel, and aerosol items permitted inside the aircraft cabin. Specifically, the rule mandates that every individual container holding a liquid or gel must have a maximum capacity of no more than 100 milliliters or 3.4 ounces. All such containers must fit comfortably inside a single, transparent, resealable plastic bag with a total volumetric capacity not exceeding 1 liter. Passengers are restricted to presenting only one clear bag total for security screening at the airport checkpoint. Any container exceeding the 100ml limit is subject to immediate confiscation by security personnel, regardless of the actual remaining amount of liquid inside the bottle. Exemptions to this standard protocol are typically granted for essential baby formulas, specialized dietary requirements, and doctor-prescribed liquid medications accompanied by proper medical documentation.