The FBI says the Washington court wants a finalised list of individuals “who meet the statutory definition of victim and wish to have access to the court proceedings”.
The court also wants to know their total number and geographic location before it decides how to proceed.
Legislation passed by the US Congress to pave the way for remote access to the trial defines a victim of Lockerbie in two ways.
It includes someone who was “present at or near the scene in Lockerbie when the bombing occurred or immediately thereafter” and who suffered “direct or proximate harm (e.g. physical or emotional injury) as a result”.
The second group involves “the spouse, legal guardian, parent, child, brother, sister, next of kin or other relative of someone who was killed on Pan Am 103 or killed or harmed on the ground in Scotland or someone who possesses a relationship of a similar significance to someone who was killed or harmed in the attack”.
Dr Jim Swire, whose daughter Flora died on the plane, welcomed the decision to define people who witnessed what happened in Lockerbie as victims of the bombing, if they suffered harm.
He said: “Those affected by any disaster should never be restricted from access to the consequences of that disaster.
“So I think it’s a good move that I entirely endorse.”