Williams has confirmed that Alex Lynn will continue to act as its development driver throughout the course of 2016.
Lynn linked up with Williams at the start of last year and sampled the outfit's 2015 car during the mid-season test in Spain.
Lynn will also continue to race for DAMS in the GP2 Series, after placing sixth with two victories during his rookie campaign in the category last season.
"I am really delighted to continue in my development driver role with the team this season and remain grateful for their on-going support," said Lynn.
"I relish the opportunity to build on the hard work I put in last year, to continue helping develop the Formula 1 car and gaining further knowledge of the inner workings of the Williams team from both a technical and human perspective.
"With the team’s blessing and support, my main focus this season will be to fight for the GP2 title. I am determined to prove myself worthy of graduating to become a fully-fledged Formula 1 race driver at some point in the not too distant future."