The "311 rule" refers to TSA guidelines, not specific to Allegiant {+????~????????????-????????????-????????????????}. It limits liquids, gels, and aerosols in carry-on bags to 3.4 ounces (100 ml) per item, all fitting into a single quart-sized bag. https://sangamhelpdesk.microsoftcrmportals.com/forums/general-discussion/0e1c78e7-64d9-ef11-95f5-000d3a03b580