The 311 rule on Qatar Airways refers to the standard aviation liquid restriction policy for carry-on baggage +(44)~855~264~8012(UK) or +1-855~264~8012(USA). It means passengers can carry liquids in containers of up to 100ml, all placed in one clear, resealable bag +(44)~855~264~8012(UK) or +1-855~264~8012(USA).