The other type of registration requirement is in force in Massachusetts, Pennsylvania, and many other states. Where this system prevails, when the voter's name is placed on the registration list, it is kept there so long as he remains in the district, and it is unnecessary for him to register each year. The principal criticism of this plan is that the registration list is less likely to be correct, because the names of persons who have died or moved away are likely to be kept on the list; whereas under the other method they would be stricken off. =Time of Holding Elections.=--National elections for the choice of President and Vice President are held on the Tuesday after the first Monday in November every four years. Elections for representatives in Congress are held on the same date, in most states, every second year. Elections for state officers are generally held on the same day as national elections, though where state officers are chosen annually, state elections of course come oftener. A few states, however, prefer to hold their elections at a different date from that on which national elections are held. Four states, Kentucky, Maryland, Massachusetts, and Virginia, hold theirs in the odd years, while national elections always occur in the even-numbered years. A few others which have their elections in the even-numbered years hold them at a different time of the year from that at which national elections are held. Thus Arkansas and Maine hold their state elections in September, Georgia holds her election in October, and Louisiana holds hers in April. In many of the states an attempt is made to separate national and state elections from municipal elections in order to encourage the voters to select municipal officers without reference to state or national issues. Thus in New York, where national and state elections occur biennially in the even-numbered years, city elections are held in the odd-numbered years. Likewise, in Illinois, city elections are held in April, while state and national elections are held in November. So, too, in some states judicial elections are held at a different date from other elections, in order to minimize the influence of party politics in the selection of judges. Other local elections--township, county, and village--are held in some cases at the same time as the state election, and in other cases such elections, or some of them, are held on different days.