Here Are a Couple of Applicable Nebraska State Statutes:
First one pertains to requirements for an NE Firearms (Handgun) Purchase Permit>
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69-2403.
Sale, lease, rental, and transfer; certificate required; exceptions.
(1) Except as provided in this section and section 69-2409, a person shall not purchase, lease, rent, or receive transfer of a handgun until he or she has obtained a certificate in accordance with section 69-2404. Except as provided in this section and section 69-2409, a person shall not sell, lease, rent, or transfer a handgun to a person who has not obtained a certificate.
(2) The certificate shall not be required if:
(a) The person acquiring the handgun is a licensed firearms dealer under federal law;
(b) The handgun is an antique handgun;
(c) The person acquiring the handgun is authorized to do so on behalf of a law enforcement
agency;
(d) The transfer is a temporary transfer of a handgun and the transferee remains (i) in the line of sight of the transferor or (ii) within the premises of an established shooting facility;
(e) The transfer is between a person and his or her spouse, sibling, parent, child, aunt, uncle, niece, nephew, or grandparent;
(f) The person acquiring the handgun is a holder of a valid permit under the Concealed
Handgun Permit Act; or
(g) The person acquiring the handgun is a peace officer as defined in section 69-2429.
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This next one pertains to certain under-18 exceptions>
28-1204.
Unlawful possession of a handgun; exceptions; penalty.
(1) Any person under the age of eighteen years who possesses a handgun commits the offense of unlawful possession of a handgun.
(2) This section does not apply to the issuance of handguns to members of the armed forces of the United States, active or reserve, National Guard of this state, or Reserve Officers Training Corps, when on duty or training, or to the temporary loan of handguns for instruction under the immediate supervision of a parent or guardian or adult instructor.
(3) Unlawful possession of a handgun is a Class I misdemeanor.
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For further interpretation, an attorney is suggested.