The U.S. Navy has tapped three San Diego shipyards to conduct maintenance on its San Diego-based warships.

Contracts awarded to the three contain options that could extend the deals to April 2021 and give the work a cumulative value of up to $1.32 billion.

The three shipyards are BAE Systems San Diego Ship Repair, Continental Maritime of San Diego and General Dynamics NASSCO.

The contracts are indefinite-delivery, indefinite-quantity deals to provide work on surface ships — including cruisers, destroyers and amphibious ships (ships that carry U.S. Marines).

The shipyards will now have the chance to bid on delivery orders under the contracts.

Work will include complex emergent and continuous maintenance and Chief of Naval Operations availabilities.

The Naval Sea Systems Command in Washington, D.C. received three bids and awarded deals to the three. The Pentagon announced the awards March 16.