You have listed your location as Texas. For this reply I’m going to assume that your residence/ domicile is Texas.
You can do your registration renewal for the trailer/RV and the tow vehicle/ toad online.
Yes, Texas currently requires vehicle inspections take place in Texas within 90 days of the registration renewal date.
However, for people who are out of state when their vehicle comes up for renewal - there is a provision to renew the registration, get the new stickers in the mail, and conduct the inspection within 10 days of your return to the state. This provision was added to the “One Sticker” law for Texas resident military personnel, Texas residents who work out of state, and RVers.
Because Texas requires the inspection be entered in the statewide data base by the inspector, you cannot have it done by someone in another state.
However, I would recommend before starting out on a long trip that might cross your renewal month, stop by the local county tax assessor office (which handles vehicle registration in Texas) and make sure you and the office are on the same page about the temporary out of state renewal process.
My residence/ domicile is in Polk County with Escapees. A county with over half of all vehicles registered belonging to RVers, most of whom travel extensively.
Full-Time 2014 - ????
“Not all who wander are lost.”
"You were supposed to turn back at the last street."
2012 Ram 2500 Mega Cab
2014 Flagstaff 832IKBS TT