North Dakota became the second state to require high school students to pass a civics test to graduate, when Gov. Jack Dalrymple (R) signed the bill into law last week.

The measure goes into effect beginning in the 2016-2017 school year. It requires the use of the 100-question Immigration and Naturalization tes,t which asks questions about government and history. Students must answer at least 60 questions correctly during the first year to pass it, and 70 questions in later years.

Arizona Gov. Doug Ducey (R) signed a bill in January making his state the first to have the civic test high school graduation requirement, and Louisiana, Missouri, Oklahoma, and South Dakota are also considering similar measures.

“This requirement will help ensure that our high school students develop an understanding of the principles that our nation was founded on,” Dalrymple said in a statement. “Understanding our civic rights and duties empowers us all to bring about positive change that moves North Dakota and our nation forward.”