I'm not an expert on Texas' licensing requirement for electricians, but looking to this resource from the National Center for Construction Education & Research, it doesn't appear that California and Texas have any reciprocity agreement in place. So, it would seem that a contractor with a license in California would have to comply with all of the relevant requirements for obtaining that same license in Texas.
For more background on those requirements, it looks like this resource might be valuable: Electrical Safety and Licensing Frequently Asked Questions | TDLR. Good luck!
The information presented here is not legal advice and should not be construed as such. Rather, this content is provided for informational purposes. Do not act on this information as if it is advice. Further, this post does not create any attorney-client relationship. If you do need legal advice, seek the helSee More...See More...