Allegiant’s 3-1-1 rule is a guideline for carrying liquids in your carry-on baggage during a flight. According to this rule, each passenger is allowed to bring liquids in containers of 3.4 ounces (100 milliliters) or less. These liquids must be placed in a single, clear, quart-sized plastic bag (1 bag per passenger). The bag must be easily accessible for inspection at the security checkpoint. This rule is in line with TSA regulations and applies to items like shampoo, conditioner, toothpaste, and other liquids or gels. The 3-1-1 rule helps ensure a smooth screening process and complies with security standards.
