https://www.eastbaytimes.com/2020/06/04/elon-musk-backed-tunnel-to-ontario-airport-gets-go-ahead/

A San Bernardino County transportation agency voted Wednesday, June 3, to pursue a proposal from Elon Musk’s The Boring Co. for a high-speed tunnel linking Rancho Cucamonga with Ontario International Airport.

By a unanimous vote, the San Bernardino County Transportation Authority’s Board of Directors supported the idea, directing staff to flesh out the proposal and postpone a $3 million study of other airport-rail connections.