Montgomery v. Louisiana: NACC and partners filed an amicus brief urging the retroactive application of the Miller v. Alabama decision holding that mandatory life without parole sentences for youth are unconstitutional.

Miller v. Alabama and Jackson v. Arkansas: NACC joined an amicus brief challenging the constitutionality of mandatory life without parole sentences for youth convicted of homicide.

J.D.B v. North Carolina: NACC joined an amicus brief urging the United States Supreme Court to hold that the age of an adolescent suspect is a crucial factor in Miranda custody determinations.

Sullivan and Graham v. Florida: NACC joined an amicus brief requesting that the United States Supreme Court find that life without parole sentences for youth convicted of non-homicide offenses is unconstitutional.

Khaled AF Al Odah v. United States: NACC joined an amicus brief arguing that military commissions convened pursuant to the Military Commission Act lacked jurisdiction over juveniles.

Roper v. Simmons: NACC joined several organizations in the filing of an amicus brief, urging the United States Supreme Court to find it unconstitutional to impose the death penalty on youth who were under the age of eighteen at the time of the offense.