Trump’s “Freedom to Fix” memo and H.R. 7389 are not the same thing. Here’s what each one actually does, why calibration is now part of the federal definition of a repair, and what it means for your next windshield replacement.

A cracked windshield on a work truck is an inspection item, not just an insurance question. Here’s what 49 CFR 393.60 actually allows, how to order the right glass by part number, why camera-equipped trucks need recalibration, and how fleet managers can keep windshield downtime to one short stop.

That DW or FW number on your windshield quote is a NAGS number, the catalog ID the whole auto glass industry runs on. Here's how to read the prefix, digits, and suffix letters, why it's different from your automaker's part number, why your VIN can't always pick the right windshield, and what to check before a shop orders your glass.

Comprehensive pays for it, your deductible still applies, and no, Texas has no free windshield law. That’s Florida. What TDI and the Texas Insurance Code actually say about deductibles, chip repair waivers, ADAS calibration, your right to pick the shop, and whether a glass claim raises your rate.

That black band around the edge of your glass isn’t paint, and the dots fading out of it aren’t decoration. What the frit actually is, why the dots solve a heat problem that happens in a furnace rather than in your driveway, and why the weakest strip of your windshield is exactly where they live.

Sunroof glass doesn’t explode so much as release. What actually makes a tempered roof panel let go, why “road debris” is always the answer you get, what seven years of federal investigation concluded, and what to do in the first ten minutes.

AS1, DOT-459, M854, DW1580: the block of text etched into the corner of your windshield is called the bug, and most of it is required by federal law. Here’s what every marking actually means, which one can get you a ticket in Texas, and the three that nearly every article on the subject gets wrong.

Not every vehicle needs it, and some shops charge for it anyway. How to tell whether your car actually requires ADAS calibration after a windshield replacement, what it costs, and how to verify it was done right.