Actually, I'm not too sure myself, but my car is registered in the state of Texas and I'm out here in school in California. My emissions certificate from Texas DPS has just expired, and I need to get an emissions test done. Problem is, I went to a CA DMV certified smog test station and they said I don't need one from CA, just one from TX when (if) I return to the state. Now I'm confused, because I thought I could just go and get a CA sticker from the smog test station, and that would suffice until I reach TX. Smog Check man says it's not gonna do any good to have a CA emissions sticker because I'm registered to TX. TX DPS says get one if I'm out of state, because I'm not exempt from state law regarding emissions. What's the deal here? Anyone else been in a similar situation?