Which of the following is a requirement for eligibility to vote?

To be eligible to vote in New Jersey, an individual must be at least 18 years of age by the time of the election. This age requirement ensures that voters have reached a level of maturity and legal accountability necessary for participating in the democratic process. Voting laws across the United States generally set the minimum voting age at 18, aligning with the 26th Amendment to the U.S. Constitution, which guarantees this right.

Although residency and registration in a political party may also influence one's ability to vote in certain elections, they do not override the fundamental age requirement. Having a high school diploma is not a stipulation for voting eligibility, as it could unjustly disenfranchise individuals who are otherwise of legal voting age. Thus, the age requirement is a clear and essential criterion that every voter must meet to participate in elections.