Do state vehicle laws apply to out of state vehicles?

[dentheman]

I am just curious about this: If my vehicle (any vehicle) is registered in Texas, has Texas tags, conforms to Texas and federal law, and I have a valid Texas driver's license, can I legally drive or ride it to visit or tour in California?

Here are a few examples that come to mind: 1). Texas and California emissions controls differ, so my vehicle probably would not comply with California emissions. 2). I would have my vehicle insured as required by Texas, which might not be the same as California requirements. 3). Texas law does not limit how many times my (hypothetical) brake light flasher can flash, California law does limit the number.

I was looking at a brake flasher online and noticed they have a model that is legal for California, that is what got me thinking about this. I threw the other things in as examples of not conforming with CA law, but still being legal (I think).