§ 1782 Challenging admissibility of expert testimony.

Here's a plain English summary of this rule:

If you want to challenge whether an expert's testimony should be allowed in your case, you generally have to wait until the pretrial conference or the actual trial to raise that challenge. You can't use it as a way to fight summary judgment evidence before that point. The only exception is if the expert's own side asks for an earlier challenge.

This means one side can't try to knock out an expert witness early in the case just to win a summary judgment motion. The law wants these fights over expert testimony to happen closer to trial, when the judge can look at everything more carefully.

There's one important exception to know about. If someone names an expert witness too late in the case, you can still file a motion to strike that expert right away. You don't have to wait for the pretrial conference or trial to challenge a late-named expert.