MOBILE, Ala. (WKRG) — Mobile’s biggest private employer enters a new era Monday. Austal begins construction on its first steel ship tomorrow.

Last year Austal was awarded a contract to build a Navajo-class Towing, Salvage and Rescue Ship or T-ATS. Congressman Jerry Carl will join Austal administrators and Naval Officers for a ceremony to mark the start of construction. According to a news release:

“T-ATS will provide ocean-going tug, salvage, and rescue capabilities to support U.S. fleet operations and will be a multi mission common hull platform capable of towing heavy ships.” This design is a bit of a departure for the Mobile shipbuilder. Austal’s current military contracts for the LCS and EPF are both aluminum-hulled vessels.