Unfortunately, no citrus are allowed into California without going through quarantine (after having an import permit). If there is sufficient demand for it, you might contact UC Riverside to see if they would be interested in importing a scion from PA. They typically clean up other diseases (not HLB) by propagating from very young tip growth where the diseases have not yet had time to develop yet. I'm somewhat surprised this hasn't been imported already as they have quite a few:
UCR: Citrus Variety Collection