Any letter or number or combination of letters, numbers or spaces which is available for issuance may be reserved for a period of 30 days after the date on which the applicant makes his or her reservation with the Department. If license plates are to be manufactured in a new format, the Director will extend the period of a reservation long enough to allow an applicant to receive plates in the new format.
Nev. Admin. Code § 482.340
NRS 482.160, 482.3667