Sauber has become the first team to reveal that its 2013 car has passed all the mandatory crash tests.
The Swiss team announced on Wednesday that their C32 chassis - which will be used in the coming season - is fully homologated to begin testing next year.
To ensure driver safety, all F1 cars must pass crash tests before they can be tested on a track - a safety measure that was introduced at the start of 2012.
"The C32 chassis and safety structures have passed their FIA safety tests. So, fully homologated and ready for winter testing," said Sauber announced on Twitter.
Winter testing starts on February 5 at the Jerez circuit where Paddy Power will have all the Formula One odds for the upcoming season.
