Polls in Howard County will be open from 7 a.m. to 8 p.m. Tuesday.

On the ballot, Howard residents will see the names of candidates for U.S. president; Maryland's seats in the U.S. Senate and the 3rd and 7th congressional districts; and the Howard County Board of Education. Also on the ballot are two questions about changes to the county charter and a yes or no vote on whether Court of Special Appeals at Large Judge Joseph F. Murphy Jr. should continue in office.

Election officials urge voters to go to the polls midmorning or midafternoon if possible since the turnout in presidential elections historically has been larger than in other years.

Eighty percent of the 164,179 voters registered in Howard are expected to vote, compared with 60 to 65 percent in an off-year election, officials said.

They advise voters to confirm their registration and polling place locations before Tuesday. Voters can find their polling sites on their voter registration cards.

Those who have moved and not updated their registration should call the Howard Board of Elections at 410-313-5820.

The deadline for registering to vote has passed. The general deadline for applying for an absentee ballot also has passed, but the state allows voters in certain cases to file an application through Election Day.

Information on the late application procedure is available at the state Board of Elections Web site, www.elections.state.md.us/citizens/how_to_vote.html.

Ballots returned by mail must be received no later than 4 p.m. Wednesday and be postmarked before Election Day.

An overseas ballot will be accepted until 4 p.m. Nov. 12 if it is postmarked before Election Day.

Additional information can be found on the Howard Board of Elections Web site at www.co.ho.md.us/servicesresidents_voting.htm.

Washington Post stories on statewide and local contests are available at www.washingtonpost.com.

Election results will be available Tuesday night on The Post's Web site.