It allows passengers to bring containers of up to **3.4 ounces (100 ml)**, all fitting into **1 quart-sized, clear, resealable bag**, with **1 bag per person** 1-888-738-0812(USA),,+1-888-738-0812(UK). This rule aligns with TSA guidelines for security screening. The 3:1:1 rule on Royal Caribbean applies to carry-on liquids (1