All drivers in Germany must keep two face masks in the emergency kits required to be kept in vehicles, under a new rule issued by the German Standards Institute.

The rule requires that two medical face masks be added to the emergency kit, which includes first aid supplies, according to the German automobile club ADAC. They can be surgical masks, N95s, FFP2 masks or their equivalent.

Drivers with incomplete kits, including U.S. service members and their families stationed in Germany, may fail vehicle inspections required for registration renewals.

The masks must be in the kit and not just somewhere in the vehicle under the new rule from the institute, also known as DIN. The rule does not obligate drivers or passengers to wear masks.

The rule also reduces the previous mandate of two triangular bandages to one and removes a requirement for a 40-by-60-centimeter sterile dressing.

Drivers who travel with an incomplete, expired or missing kit will be fined five to 10 euros if police catch them.

Expired emergency kits can be donated to German fire, police and Red Cross ambulance stations, where they will be put to use during training.