The office of lieutenant governor was created by the Constitution of 1873. As with the governor's position, the Constitution of 1968 made the lieutenant governor eligible to succeed himself or herself for one additional four-year term. The position's only official duties are serving as president of the state senate and chairing the Board of Pardons and the Pennsylvania Emergency Management Council. Lieutenant governors often work on additional projects and have a full schedule of community and speaking events. Pennsylvania is the only state that provides an official residence, State House at Fort Indiantown Gap, for its lieutenant governor. Constructed in 1940 and previously the governor's "summer residence", it became available for Pennsylvania's lieutenant governor in 1968 when the current governor's residence was completed in Harrisburg.