Amends GS 7B-1501 to include only juveniles at least 10 years old (currently, at least 6 years old) in the defined terms delinquent juvenile and undisciplined juvenile as the terms are used in undisciplined and delinquent juvenile laws set out in Subchapter II, GS Chapter 7B. Makes conforming changes to the definition of delinquent juvenile that becomes effective December 1, 2019, applicable to delinquent acts committed on or after December 1, 2019.

Effective four years from the date the act becomes law, makes conforming repeal of GS 7B-1903(f) (concerning secure custody of juveniles under the age of 10 years found to need evaluation for medical or psychiatric treatment but who do not have a pending delinquency charge).

Makes conforming changes to GS 7B-2102 (concerning fingerprinting and photographing juveniles) and GS 7B-2513 (concerning committing delinquent juveniles to the Division of Adult Correction and Juvenile Justice of the Department of Public Safety for placement in a youth development center). Effective December 1, 2019, makes the same conforming changes to the version of GS 7B-2513 that becomes effective December 1, 2019.