(NC) According to the Canadian Air Transport Security Authority, the most common hold up at pre-board screening involves passengers who bring liquids, aerosols, and gels over the 100 mL limit. If you’re planning a trip this winter, following these tips can help make your security screening quicker and easier.

1. Basic rules. Containers must be 100 mL or less. All containers must fit in one clear, resealable 1L plastic bag — one per passenger. Take your plastic bag out of your carry-on baggage and place it in a bin. Any containers over 100 mL can be placed in your checked baggage. Examples of liquids, aerosols, and gels include bottled water, maple syrup, liquid and gel-based cosmetics, creams, lotions, shampoo, toothpaste, jam, peanut butter, and icepacks.

2. Exceptions. Some items are exempted from the rule and can be brought in quantities greater than 100 mL. However, they must be presented to the screening officer for inspection. Exceptions include baby food, milk, formula, water, and juice for infants under two years of age; breast milk (applies to passengers flying with or without their child); prescription and essential non-prescription medicines; liquids/gels for medical purposes, such as icepacks for injuries, baby food/beverages, juice for diabetics, distilled water for CPAP devices.

3. Duty-free purchases: Duty-free liquids, aerosols, and gels purchased from any airline or airport retailer that are properly sealed in official security bags and accompanied by an itemized receipt are accepted in carry-on baggage.

Find more tips to help you breeze through security online at catsa.gc.ca.