The Hartford (SSN 768) is the U.S. Navy's 57th Los Angeles-class attack submarine and the second ship to be named for Hartford, Connecticut. The contract to build her was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut, on June 30, 1988, and her keel was laid down on April 27, 1992.

December 4, 1993 The Pre-Commissioning Unit (PCU) Hartford was christened and launched during a ceremony at the Electric Boat shipyard in Groton, Conn. Mrs. Laura O'Keefe, wife of former Secretary of the Navy Sean O'Keefe, served as sponsor of the ship. Cmdr. George Kasten is the prospective commanding officer.

December 10, 1994 USS Hartford was commissioned during a ceremony at Naval Submarine Base, New London in Groton, Conn.

In October 1995, the Hatford completed a four-month Post Shakedown Availability (PSA).

January 31, 1996 SSN 768 pulled into Port Canaveral, Fla., for a two-day port call after completing a post PSA Fire Control System and Final Weapons certifications.

March 18, USS Hartford arrived in Willemstad, Netherlands Antilles, for a five-day visit to Curacao after supporting Tactical Readiness Evaluation (TRE) for USS Pittsburgh (SSN 720) and USS Norfolk (SSN 714).

April 29, The Hartford departed Groton for sea trials and PCO operations after a five-week Intermediate Maintenance Availability (IMA).

June 10, USS Hartford arrived in Halifax, Nova Scotia, for a three-day port visit; Another brief visit to Halifax from June 27-28 after supporting Canadian joint exercise Marcot '96.

August 14, The Los Angeles-Improved class attack submarine departed homeport for a two-day Family Cruise after a five-week IMA. Port visit to Port Canaveral from Sept. 16-20.

January 22, 1997 USS Hartford departed NSB New London for its maiden northern Atlantic deployment.

February 15, The Hartford arrived in Coulport, Scotland, for a five-day port visit. Brief port calls to Tromso, Norway, on March 10 and Coulport on April 21. Returned home on May 3.

July 16, SSN 768 lost its TB-23 Towed Array due to material defect during the routine underway following a four-week IMA.

July 26, USS Hartfor pulled into Port Canaveral, Fla., for a week-long port call.

August 6, The Hartford conducted three Tomahawk Operational Test Launches (OTL) in the Gulf of Mexico, marking the first firing of TLAM D variant missiles by a A/N BSY-1 Combat System.

In late September, USS Hartford was underway in the Virginia Capes OPAREA supporting two other submarines.

April 9, 1998 The Los Angeles-Improved class attack submarine entered the dry-dock for emergent repairs. Departed dry-dock on April 18; Underway for sea trials on May 13.

May 28, Cmdr. Ferdinand J. Diemer relieved Cmdr. Joel E. Bohlmann as the 3rd CO of SSN 768 during a change-of-command ceremony at Pier 8 on NSB New London.

July 7, USS Hartford departed Groton, Conn., for a scheduled deployment in the North Atlantic.

July 17, The Hartford arrived in HMNB Clyde in Faslane, Scotland, for a 10-day port call. Port visit to Tromso, Norway, from Oct. 6-9.

October 15, SSN 768 pulled into HMNB Devonport in Plymouth, England, for a two-week port call before participating in a Royal Navy's Joint Maritime Course (JMC) 983.

November 10, USS Hartford arrived again in Faslane for a four-day port visit. Participated in Ice Ops. 3-98 from Nov. 27- Dec. 4.

December 18, USS Hartford returned to homeport after more than a five-month deployment.

February 24, 1999 The Hartford departed Groton for sea trials in the Narraganset Bay OPAREA after a four-week Fleet Maintenanace Availability (FMA). Port call to Naval Station Mayport, Fla., from March 9-11; Returned home on March 15.

March 25, USS Hartford arrived in Annapolis, Md., for a three-day port visit. Commenced a 10-week Selected Rerstricted Availability (SRA) on April 28; In floating dry-dock Oakridge (AFDM-1) from May 4- June 28; Underway for sea trials from July 14-16; Underway again for local operations from July 27- Aug. 12.

From Sept. 21 through Oct. 7, the Los Angeles-Improved class attack submarine was underway in the western Atlantic for ASW practical training with the Cruiser Destroyer Squadron 26. Port call to Naval Station Roosevelt Roads, Puerto Rico, from Oct. 8-12; Participated in a Composite Training Unit Exercise (COMPTUEX) with the USS Dwight D. Eisenhower (CVN 69) Battle Group from Oct. 13-23; Returned home on Nov. 2; Underway for Joint Task Force Exercise (JTFEX) 00-1 from Nov. 30- Dec. 17.

From January 18-30, 2000, the Hartford was underway for Pre-Overseas Movement Certification (POMCERT), Sound Trials and Torpedo Exercise.

February 19, USS Hartford departed Naval Submarine Base New London for a scheduled Mediterranean deployment.

March 2, SSN 768 arrived in Gibraltar, British overseas territory, for a four-day port visit. Port call to La Maddalena, Italy, from March 9-12.

March 21, USS Hartford pulled into Toulon Naval Base for a six-day visit to France after participating in exercise Shark Hunt. Port calls to Haifa, Israel, from April 7-10 and 13-17; Participated in exercise Noble Suzanne from April 10-13.

May 19, The Hartford pulled into Souda Bay, Crete, Greece, for a three-day port call. Port visit to Corfu, Greece, from June 1-5 after participating in NATO exercise Dynamic Mix.

June 9, USS Hartford arrived in Palma de Mallorca, Spain, for a six-day port visit. Port calls to La Maddalena from June 27- July 13 and Aug. 2-4; Brief visit to Bermuda on Aug. 23 in preparation for Operational Reactor Safeguards Examination (ORSE).

August 24, USS Hartford returned to homeport after a six-month deployment.

From January 9-19, 2001, the Los Angeles-Improved class submarine was underway for routine training at the Atlantic Undersea Test and Evaluation Center (AUTEC) range off Andros Island, Bahamas. Underway again for routine training from Feb. 14-26 and a brief port visit to Port Canaveral to pick up VIPs.

March 9, Cmdr. Robert D. Kelso relieved Cmdr. Ferdinand J. Diemer as CO of the Hartford during a change-of-command ceremony at the Naval Submarine Base New London's Shepherd of the Sea chapel.

From April 23-27, USS Hartford was underway for local operations. Underway again from May 8-18.

May 30, SSN 768 departed Groton to participate in COMPTUEX with the USS Theodore Roosevelt (CVN 71) BG. Port calls to Roosevelt Roads from June 8-12 and 22-25th; Returned home on July 3; Underway for JTFEX from Aug. 1-22; Port call to Naval Station Norfolk from Aug. 19-20.

September 19, USS Hartford departed NSB New London for a scheduled deployment in the U.S. 5th and 6th Fleet Areas of Responsibility, as part of the Roosevelt Battle Group.

October 5, The Hartford pulled into Naval Support Activity La Maddalena, Italy, for a five-day port call to get tender support services from USS Emory S. Land (AS 39).

October 22, The Los Angeles-Improved class fast attack nuclear submarine pulled into Souda Bay, Greece, for a four-day port visit after participating in a multinational exercise Bright Star. Transited Suez Canal on Oct. 29; Port call to Manama, Bahrain, from Dec. 1-3.

January 27, 2002 USS Hartford moored outboard HMS Trafalgar (S107) in Manama, Bahrain, for a three-day port call to pick up food and supplies. Another visit to Bahrain from Feb. 17-25 for upkeep; Transited Suez Canal on March 7; Brief visits to Souda Bay on March 9 and Augusta Bay, Italy, on March 11.

March 22, USS Hartford returned to homeport after a six-month deployment in support of Operation Enduring Freedom.

May 7, The Hartford departed Groton, Conn., for PCO operations and TRE in the Puerto Rican Op. Area. Port calls to Roosevet Roads from May 18-22 and 25-28th; Returned home on June 6; Underway from July 25- Aug 16 to support the TRE for USS Newport News (SSN 750) in the AUTEC range; Port call to Port Canaveral from Aug. 8-13.

From Aug. 26 through Oct. 4, SSN 768 was underway for COMPTUEX with the USS Harry S. Truman (CVN 75) BG. Port call to NS Roosevelt Roads, Puerto Rico, from Sept. 11-14; Underway for Joint Task Force Exercise (JTFEX) from Oct. 25- Nov. 8.

October ?, 2003 USS Hartford departed Naval Submarine Base New London for a scheduled Mediterranean deployment.

October 25, The Hartford briefly touched bottom while it was traveling on the surface in shallow water east of Caprera, Sardinia, Italy.

October 25, USS Hartford moored outboard the USS Emory S. Land in La Maddalena, Sardinia, for emergent repairs to its hull, acoustical tilling and rudder. Underway on Nov. 16.

December 16, SSN 768 entered the Norfolk Naval Shipyard in Portsmouth, Va., for repairs.

January 16, 2004 Cmdr. Frank Cattani relieved Cmdr. William C. Stacia, Jr., as CO of the USS Hartford during a change-of-command ceremony at the Norfolk Naval Shipyard's Dry Dock Club, Scott Annex.

April 29, Capt. Robert H. Perry relieved Capt. David E. Eyler as Commander, Submarine Squadron (SUBRON) 4, during a change-of-command ceremony aboard the Hartford.

August 11, 2005 USS Hartford recently pulled into Callao, Peru, for a scheduled port visit while deployed to the U.S. 4th Fleet AoR.

March 15, 2006 The Hartford arrived in Portsmouth Naval Shipyard in Kittery, Maine, for a 14-month, $150 million worth, Depot Modernization Period (DMP).

July 10, 2008 The Los Angeles-Improved class attack submarine is currently participating in a COMPTUEX, as part of USS Iwo Jima (LHD 7) Expeditionary Strike Group (ESG).

August ?, USS Hartford departed Groton for a scheduled deployment in the U.S. 5th Fleet AoR.

December 9, The Hartford departed HMNB Gibraltar, British overseas teritory, after a routine port call.

March 20, 2009 USS Hartford collided with USS New Orleans (LPD 18) about 1 a.m. in the strait of Hormuz. Fifteen aboard the submarine were injured but returned to duty. The amphibious transport dock suffered a ruptured fuel tank, which resulted in an oil spill of approximately 25,000 gallons of diesel fuel and the Hartford sustained damage to her sail. Both ships were heading to port and were going in the same direction when the incident occurred in the narrow strait.

April 14, Rear Adm. Michael J. Connor, commander of Task Force 54 and Submarine Group 7, relieved Cmdr. Ryan Brookhart of his duty as CO of USS Hartford because of a "loss of confidence in his ability to command." Cmdr. Chris Harkins assumed temporary command of the ship. SSN 768 is currently in port of Manama, Bahrain.

May 21, The Hartford returned to Groton, Conn., after a month-long escorted surface transit from Bahrain. In July, the sub will go to Electric Boat, which has been awarded a $15.8 million contract for advance planning to later restore it to "full service condition". This planning work is expected to be completed by October.

May 23, Cmdr. Robert Dunn took command of USS Hartford in a ceremony at Naval Submarine Base New London.

July 8, Another $21.6 million contract has been awarded to Electric Boat for off-hull fabrication of the sail and retractable bow plane on the port side. The Hartford’s sail was partially torn from the hull, and it’s not clear if a completely new one will be required. The contract calls for the work to be complete by January 2010.

August 6, U.S. Navy awarded another $65.2 million contract to repair the Hartford. Electric Boat will install a hull patch and a bridge access trunk on the sub, along with a portside retractable bow plane and sail. The last two items were pre-fabricated under a previous $21.6 million contract. Workers will also perform selected maintenance on the sub.

February ?, 2011 USS Hartford returned to homeport after successfully passing its sea trials in January, completing the 18-month, $120 million worth, repair period.

August 26, SSN 768 emergency sortied from NSB New London to avoid the approaching Hurricane Irene.

November 4, Cmdr. Steven Wilkinson relieved Cmdr. Robert Dunn as CO of the Hartford during a change-of-command ceremony at Groton.

May 15, 2012 USS Hartford departed Naval Submarine Base New London for a scheduled North Atlantic deployment.

August 12, The Los Angeles-Improved class attack submarine recently arrived in Lisbon, Portugal, for a scheduled port visit.

October 26, The Hartford pulled into Portsmouth, England, for a 10-day port call.

November 17, USS Hartford returned to Groton after a six-month deployment. The sub traveled more than 28,000 nautical miles and also made port calls to Bergen, Norway; and Faslane, Scotland.

January 31, 2013 General Dynamics Electric Boat Corp. was awarded a $41,6 million modification to previously awarded contract (N00024-12-C-4301) to exercise the option for the execution work necessary to prepare for and accomplish maintenance and modernization work for the USS Hartford's Drydocking Selected Restricted Availability (DSRA). Work is expected to be completed by July 2013.

April 12, Electric Boat was awarded a $9.5 million modification to previously awarded contract (N00024-12-C-4301) for the Hartford's DSRA. Work is expected to be completed by September.

June 20, 2014 Cmdr. Thomas B. Aydt relieved Cmdr. Steven Wilkinson as commanding officer of the USS Hartford during a pierside ceremony at NSB New London.

September 15, The Hartford arrived in Naval Station Newport, R.I., for a four-day port call in conjunction with the 21st Chief of Naval Operation's International Seapower Symposium, hosted by the Naval War College.

January 13, 2015 USS Hartford returned to NSB New London after underway for routine training.

May 4, SSN 768 returned to homeport after a month-long underway in the U.S. Fleet Forces Command AoR.?

June 11, USS Hartford departed Groton for a scheduled North Atlantic deployment.

June 24, The Hartford recently moored at Her Majesty's Naval Base (HMNB) Clyde in Faslane, Scotland, for a routine port call; Inport Faslane again in mid-August.

December 18, USS Hartford moored at Pier 8S on NSB New London following a six-month deployment. The sub traveled nearly 40,000 nautical miles and also made port call to Rota, Spain.

February 2?, 2016 USS Hartford departed Groton to participate in Ice Exercise (ICEX) 2016, 150 nautical miles north of Prudhoe Bay, Alaska; Returned home on April 15.

May 24, The Hartford is currently moored at Pier 31S on Naval Submarine Base New London; Underway for routine training on June 2; Moored at Trident Wharf in Port Canaveral, Fla., for a brief stop on June 6; Moored at Berth C1 on Naval Station Mayport, Fla., from June 16-25; Brief stop at Wharf B1 on June 25; Returned home on July 7.

August 5, Cmdr. Matthew D. Fanning relieved Cmdr. Thomas B. Aydt as CO of the Hartford during a change-of-command ceremony on board the sub.

August 24, USS Hartford departed Naval Submarine Base New London for routine operations; Brief stop off Groton for personnel transfer on Aug. 29; Returned home on Aug. 31; Underway again on Sept. 3; Brief stop off Groton on Sept. 12; Moored at Pier 33N on Sept. 14; Underway again on Sept. 21.

September 23, The Hartford made a brief stop off Groton for personnel transfer; Brief stop off Groton again on Sept. 26; Returned home on Sept. 28; Underway for routine operations from Dec. ?-7 and Jan. 10-?.

February 1?, 2017 USS Hartford departed homeport for a scheduled North Atlantic deployment.

May 11, The Hartford departed HMNB Clyde in Faslane, Scotland, after a routine port call.

July 9, SSN 768 moored at Carrier Pier 3W in Arsenal de Brest, France, for a routine port call; Moored at Berth 1, Pier 1 in Naval Station Rota for a brief stop on Aug. 9.?

August 18, USS Hartford moored at Pier 8N on Naval Submarine Base New London following a six-month deployment. The sub traveled 35,800 nautical miles and also made port calls to Haakonsvern, Norway.

February 1, 2018 The Los Angeles-Improved class attack submarine made a brief stop off Groton for personnel transfer; Returned home on Feb. 4.

February 20, USS Hartford departed Groton to participate in Ice Exercise (ICEX) 2018; Arrived in Ice Camp Skate, about 150 n.m. north of Prudhoe Bay, Alaska, on March 9; Returned home on April 10.

October 20, The Hartford is currently moored at Pier 17S on Naval Submarine Base New London; Brief underway for a VIP cruise on Nov. 21; Underway again on Nov. 26.?

April 5, 2019 USS Hartford recently moored at Her Majesty's Naval Base (HMNB) Clyde in Faslane, Scotland, for a routine port call while participating in NATO exercise Joint Warrior 19-1; Moored at Haakonsvern Naval Base, Norway, on June 7.

July 24, USS Hartford moored at Pier 6S on Naval Submarine Base New London following a six-month North Atlantic deployment.

July 29, Cmdr. Stephen A. Wiegel relieved Cmdr. Matthew D. Fanning as CO of the Hartford during a change-of-command ceremony on board the sub.

November 8, The Hartford made a brief stop in Naval Station Mayport, Fla., for personnel transfer before participating in a Submarine Commander's Course (SCC), at the Atlantic Undersea Test and Evaluation Center (AUTEC) range, off Andros Island, Bahamas.

December 1, The Hartford recently moored at Pier 6S on Naval Submarine Base New London; Underway again from Jan. ?- Feb. 1.

April 23, 2020 USS Hartford moored at Pier 32S on Naval Submarine Base New London after a three-day underway for routine operations; Underway again on April 27; Moored at Pier 17S from April 29- May 2.?

June 9, The Hartford moved from Pier 32N to floating dry-dock Shippingport (ARDM 4) on Naval Submarine Base New London.

August 14, Electric Boat Corp., Groton, Conn., was awarded a $125,8 million contract for the labor and material efforts required to plan the USS Hartford's Engineered Overhaul (EOH). Work is expected to be completed by February 2022.

September 17, USS Hartford undocked and moored pierside on Naval Submarine Base New London.

March 24, 2021 USS Hartford moored at Naval Submarine Base New London after underway for routine operations; Moved to Electric Boat shipyard on June 3.

June 4, General Dynamics Electric Boat Corp. was awarded a $63,8 million modification to a previously-awarded contract (N00024-20-C-4312) for smart start maintenance, repair, and modernization efforts in support of the USS Hartford's EOH; Another $21,3 million modification was awarded on July 29.

January 18, 2022 General Dynamics Electric Boat Corp. was awarded a $22,2 million modification to a previously-awarded contract (N00024-20-C-4312) in support of the USS Hartford's EOH; Another $108,1 million modification was awarded on Feb. 24.

May 20, 2022 Cmdr. Kevin J. Behm relieved Cmdr. Stephen A. Wiegel as CO of the Hartford during a change-of-command ceremony at fishing pier on Fort Trumbull State Park in New London.

July 28, General Dynamics Electric Boat Corp. was awarded a $697,9 million modification to a previously awarded contract (N00024-20-C-4312) for the USS Hartford's EOH. Work is expected to be completed by October 2026.

August 7, 2024 General Dynamics Electric Boat Corp. was awarded a $55,5 million modification to a previously awarded contract (N00024-20-C-4312) for the USS Hartford's EOH.

January 8, 2025 General Dynamics Electric Boat Corp. was awarded a $83,7 million modification to a previously awarded contract (N00024-20-C-4312) for the USS Hartford's EOH. Work is expected to be completed by November 2027.