A federal appeals court on Monday upheld the core provisions of two gun control laws passed in New York and Connecticut after the 2012 mass murder at Sandy Hook Elementary School that banned possession of semiautomatic assault weapons.
The 2nd U.S. Circuit Court of Appeals in New York upheld the bans on semiautomatic weapons and large-capacity magazines, but struck down a New York provision regulating load limits and a Connecticut prohibition on the non-semiautomatic Remington 7615.
New York and Connecticut's gun control measures, among the strictest in the nation, were signed into law after a gunman killed 26 children and staff at the school in Newtown, Connecticut, in December 2012.
Recent school shootings since Sandy Hook:
Recent US school shootings since Sandy Hook
US appeals court upholds core of NY, Connecticut gun laws
Hazard Community and Technical College in Hazard, Ky. -- 3 killed on January 15, 2014
Hazard Community and Technical College Senior Director of Advancement Ron Daley, right, stands in a parking lot on campus where at least two people were killed and one person was injured Tuesday evening on January 15, 2013. (Joshua Ball/Lexington Herald-Leader/MCT via Getty Images)
Santa Monica College in Santa Monica, Calif. -- 6 killed, 4 injured on June 7, 2013
Police search the grounds of Santa Monica College after multiple shootings were reported on the campus June 7, 2013 in Santa Monica, California. At least six people died in the shooting rampage before police shot and killed a black-clad gunman in the college library, police said. (Photo credit JOE KLAMAR/AFP/Getty Images)
Sparks Middle School in Sparks, Nevada -- 2 killed, 2 injured on October 21, 2013
Law enforcement gather in the parking lot after a shooting at Sparks Middle School October 21, 2013 in Sparks, Nevada. A staff member was killed and two students were injured after a student opened fire at the Nevada middle school. The suspected gunman was also killed. (Photo by David Calvert/Getty Images)
Arapahoe High School in Centennial, Colo. -- 2 killed on December 13, 2013
Community members gather during a remembrance of Claire Davis on the one-year anniversary of her death after shooting took place at Arapahoe High School. The remembrance was hosted at Clarity Commons on the school's campus on December 13, 2014. (Photo by AAron Ontiveroz/The Denver Post via Getty Images)
Florida State University in Tallahassee, Fl. -- 1 killed, 3 injured on November 20, 2014
The Florida State University Marching Chiefs play during the Gathering of Unity candlelight vigil on campus after the shooting of three FSU students earlier in the day on November 20, 2014 in Tallahassee, Florida. About 3,000 students attended the vigil according to FSU Police Chief David Perry. (Photo by Mark Wallheiser/Getty Images)
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The Newtown shooting revived a national debate on gun control. At the time, President Barack Obama launched an aggressive gun control push but his efforts largely failed in Congress.
The appeals court, in upholding the provisions, ruled against coalitions that included firearms dealers, sports shooters and gun owners who claimed the mandates infringed on their Second Amendment rights to possess firearms in self-defense.