Businesses operating in California have long since bowed their knee to the secessionist government in Sacramento and barred contact with federal immigration authorities. But now a national company, which serves as a conduit for illegals, is going sanctuary.

Greyhound, the nation's largest bus company, said Friday it will stop allowing Border Patrol agents without a warrant to board its buses to conduct routine immigration checks.

The company's announcement came one week after The Associated Press reported on a leaked Border Patrol memo confirming that agents can't board private buses without the consent of the bus company. Greyhound had previously insisted that even though it didn't like the immigration checks, it had no choice under federal law but to allow them.

In an emailed statement, the company said it would notify the Department of Homeland Security that it does not consent to unwarranted searches on its buses or in areas of terminals that are not open to the public — such as company offices or any areas a person needs a ticket to access.

Greyhound said it would provide its drivers and bus station employees updated training regarding the new policy, and that it would place stickers on all its buses clearly stating that it does not consent to the searches.

“Our primary concern is the safety of our customers and team members, and we are confident these changes will lead to an improved experience for all parties involved,” the statement said.