WASHINGTON – Toyota (IW 1000/8) unveiled Monday an overhaul of its far-flung U.S. operations into a single new headquarters in Texas, with California set to lose the most jobs.

The world's top automaker said that by 2017 most of its North American operations will be relocated to a single campus in Plano, a suburb north of Dallas.

Toyota currently has three separate North American headquarters -- one for manufacturing, one for sales and marketing and one for corporate operations.

"This is the most significant change we've made to our North American operations in the past 50 years, and we are excited for what the future holds," said Jim Lentz, chief executive for Toyota's North America region.

Lentz said the consolidation of the region's business affiliates and leaders in one location would bring a host of benefits, including speedier decision-making and improvement in best practices.

"Ultimately, enabling greater collaboration and efficiencies across Toyota will help us become a more dynamic, innovative and successful organization in North America," he said.