The passport card can be used at U.S. land and sea ports of entry when arriving from Canada, Mexico, the Caribbean and Bermuda. The card may not be used to travel by air.
A refrigerator maintains a temperature a few degrees above the freezing point of water. Optimum temperature range for perishable food storage is 3 to 5 Â°C (37 to 41 Â°F).emperature settings for refrigerator and freezer compartments are often given arbitrary numbers by manufacturers (for example, 1 through 9, warmest to coldest), but generally 3 to 5 Â°C (37 to 41 Â°F) is ideal for the refrigerator compartment and â18 Â°C (0 Â°F) for the freezer.
Your refrigerator temperature setting should be 35Â°F for optimal performance. Anything below 32Â°F will cause your food to freeze, and anything above 40Â°F will allow harmful bacteria to grow. To ensure your temperature is set properly, consider purchasing a digital thermometer for your refrigerator. Monitor the temperature, and adjust the settings until the refrigerator holds at 35Â°F. If you find that your vegetables are freezing in the refrigerator, move them into the drawers (crisper).