For a trip to countries where medical costs can be exorbitant (USA, Australia, New Zealand, etc.) and therefore poorly covered by the level of guarantees of your car insurance, your mutual insurance company and your credit card (Go and see the cost of basic medical procedures in certain countries and you will understand the interest in travel assistance)
* if you are leaving for more than 3 months (no more guarantee by your credit card or your mutual insurance)
Please note: even if you have paid for the trip of several people with your credit card, the guarantees most often only apply to the members of your tax household.
Register on Ariane on the France Diplomatie website in particular:
* If you are travelling to sensitive countries (this allows the French authorities skype data to know that you are in the country and to be able to warn you in the event of problems)
Note in your phone and/or a notebook
* Useful telephone numbers: CB opposition, Assistance, Insurance, bank advisor, consulate, customer service of your airline...
* if you have them, the numbers of each traveler's check, the date and place of purchase (essential in case of theft or loss)