“Trustee” means:
1. A state or national bank or savings bank;
2. A trust company;
3. A federally insured savings and loan association; or
4. A credit union insured by the National Credit Union Share Insurance Fund or by a private insurer approved pursuant to NRS 672.755,
Ê authorized to transact such business in the State of Nevada and designated as the trustee of the trust fund in a prepaid contract.