Although Williams have yet to announce a launch date, the team has confirmed they will be in action at the opening pre-season test.
The Grove-based team, who finished a disappointing ninth in last year's Championship, will run their new car, new engine and new line-up.
Valtteri Bottas will put the Mercedes-powered FW36 through its paces on Day One and Two before handing over to new team-mate Felipe Massa.
To date only one team, Lotus, has confirmed they won't be in attendance at Jerez next Tuesday opting to wait until the second test in Bahrain.
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