The New Jersey History Day Act designates December 18 of each year as New Jersey History Day, aiming to acknowledge the contributions of the State and its municipalities to American history while fostering civic identity, community engagement, and historical understanding among residents. The act emphasizes the importance of teaching New Jersey's rich and diverse history, which spans from pre-Columbian times to the present, and highlights the state's significant role in the founding of the United States, including its status as the third state to ratify the Constitution and the first to ratify the Bill of Rights.

Under this act, the Governor is required to issue an annual proclamation recognizing December 18 as New Jersey History Day. Each school district is encouraged to observe this day by designating a day or week for instructional activities that celebrate the state's history, which may include lessons on significant events and figures, local history exploration, student projects, and community engagement initiatives. The Department of Education will provide guidelines for these activities, while the New Jersey Historical Commission will develop resource materials, promote statewide participation, and offer grants to support programs related to New Jersey History Day.