First of all, it's common sense to carry some emergency equipment, even if that just means a AAA Card. Since cell phones don't always work where trouble strikes, we all probably need more than that card in our vehicles.
In theory, I know how to change a tire, but from experience, I know that I would have to give myself a shot of adrenaline in order to lift one of my truck's tires onto the bolts that hold the wheel. I can take the tire off, but I cannot lift the tire on; I've tried. If I were totally desperate, and if I were towing my trailer, I could probably roll the tire up onto my trailer's Jiffy Jack and try to maneuver it from there. Maybe. Without the Jiffy Jack, I'd probably be up a creek without a paddle.
Once you make it to 49 CFR, you'll have to wade through two pages of one of these, six of these, OR several of this other thing. Since each driver's situation is different, you'll want to look it up to verify what you'll actually need to have on board.
There is a lot to know about fire extinguishers, most of which I researched and then promptly forgot, but here's an excellent link explaining what you need to know. For my purposes, I needed one that had an Underwriters' Laboratories rating of 5 B:C or more. That means it is used for (B) combustible and flammable liquids like grease, gasoline, and oil and (C) electrical equipment. The number preceding the B indicates the size of fire in square feet that an ordinary user should be able to extinguish. The extinguisher I ordered is rated 10 B:C and cost $26.30.
The first item listed is tire chains (where winter conditions require them). I am not buying chains because I am not hauling my trailer anywhere that chains would be required. Once, while on the way to an endurance race, heading through the Tehachapi Pass, there was snow on the ground, and it was pretty dicey, but no chains were required. I also have four wheel drive. If I decide to haul to a show in winter, and if there's going to be snow, I'll buy chains then. For now, they're just not something I need as I never drive in the snow.
Surprisingly, tire changing equipment is listed as optional, which I find to be hysterically funny. Why are extra fuses required but not a jack? Either way, I have tire changing equipment. See above.
The one thing I need to check on is how to properly mount the fire extinguisher. Right now it's in the bag, stowed under my back seat, but I suspect that's not going to be good enough. That's going to take a bit more investigation.
I am trying not to feel overwhelmed. It's definitely a slow and steady sort of endeavor. Maybe it's a good thing that COVID-19 is slowing this all down. It actually gives me more time to learn all of the parts before I take the test.
Stay tuned for future posts.