Topic: Window material for everything behind the front doors
The title for this is the TL;DR so let's get into the elaboration.
Our windshield will be OEM/OEM replacement (whatever is on the car now) and our front side windows have been removed. Them's the rules, got it.
Now I need clarification on the REST of the windows. We will have driver and passenger side "rear door" windows, rear quarters, and a hatch. For safety and weight I would like to remove the glass but teammates would like the option of covering those areas. For the windshield the rules specify polycarbonate if removing the glass, but is this a requirement for other windows as well? Can we use acrylic to cover the window openings behind the driver? The rulebook does not specify...