As presidential candidates made their last pitches to New Hampshire residents, voters prepared to take part in the battleground state’s primary Tuesday. With around 44 percent of voters either undecided or independent, the polls are sure to see some surprises. Here’s a road map to the second voting event of the 2016 presidential season.

When does voting start? Most polls open at 7 a.m., some as early as 6 a.m., and they close no later than 7 p.m. Three towns, each with fewer than 50 residents, have chosen to open their polling stations shortly after midnight Monday, early Tuesday morning, NPR reported.

New Hampshire Democratic presidential candidate Hillary Clinton and her husband, former President Bill Clinton, greet diners at the Chez Vachon restaurant in Manchester, New Hampshire, Feb. 8, 2016. Photo: Reuters/Brian Snyder

How do the New Hampshire primaries work? Unlike the Iowa caucuses, which have a somewhat complicated system of delegates, the New Hampshire polls function like many primaries where voters place an anonymous ballot for their top presidential candidate. Unlike some other states, however, New Hampshire voters can participate in the primary regardless of whether they are registered with a political party.

How to get results? Results for the New Hampshire primary are often posted as soon as 30 minutes after the closing of the polls at 7 p.m. though they can take several hours to be fully counted. News channels, including CNN, will be hosting live coverage of the primary after the polls close, and the results are expected to be posted on the New Hampshire election authority’s website here. Politico will also be updating an interactive map on its site as results come in.

Where do candidates go next? After New Hampshire, February will be a busy month for the candidates who remain in the race. They will move on to caucuses in Nevada as well as the South Carolina primary before battling for a number of states throughout March.