Originally Posted by baldilocks
Ideally, yes, although if you are renting a car, you may have difficulty in getting the rental company to supply even one.
Rental companies usually supply one vest and the triangle. The Service Public site says nothing about multiple vests https://www.service-public.fr/partic...sdroits/F19459
Car rental companies don't usually supply the breath test kit, but they are inexpensive and can be purchased at major airports, supermarkets, service stations, online ... the cheap disposable ones are priced from around €1.20.