NRS 202.265 is the state law prohibiting "A pistol, revolver or other firearm" "on the property of the Nevada System of Higher Education, a private or public school or child care facility, or while in a vehicle of a private or public school or child care facility".
There is no reference to concealed carry. The law prohibits pistols, revolvers and other firearms, regardless of carry methods or permits.
NRS 202.265 Possession of dangerous weapon on property or in vehicle of school or child care facility; penalty; exceptions.
1. Except as otherwise provided in this section, a person shall not carry or possess while on the property of the Nevada System of Higher Education, a private or public school or child care facility, or while in a vehicle of a private or public school or child care facility:
(a) An explosive or incendiary device;
(b) A dirk, dagger or switchblade knife;
(c) A nunchaku or trefoil;
(d) A blackjack or billy club or metal knuckles;
(e) A pistol, revolver or other firearm; or
(f) Any device used to mark any part of a person with paint or any other substance.
2. Any person who violates subsection 1 is guilty of a gross misdemeanor.
3. This section does not prohibit the possession of a weapon listed in subsection 1 on the property of:
(a) A private or public school or child care facility by a:
(1) Peace officer;
(2) School security guard; or
(3) Person having written permission from the president of a branch or facility of the Nevada System of Higher Education or the principal of the school or the person designated by a child care facility to give permission to carry or possess the weapon.
(b) A child care facility which is located at or in the home of a natural person by the person who owns or operates the facility so long as the person resides in the home and the person complies with any laws governing the possession of such a weapon.
4. The provisions of this section apply to a child care facility located at or in the home of a natural person only during the normal hours of business of the facility.
5. For the purposes of this section:
(a) “Child care facility” means any child care facility that is licensed pursuant to chapter 432A of NRS or licensed by a city or county.
(b) “Firearm” includes any device from which a metallic projectile, including any ball bearing or pellet, may be expelled by means of spring, gas, air or other force.
(c) “Nunchaku” has the meaning ascribed to it in NRS 202.350.
(d) “Switchblade knife” has the meaning ascribed to it in NRS 202.350.
(e) “Trefoil” has the meaning ascribed to it in NRS 202.350.
(f) “Vehicle” has the meaning ascribed to “school bus” in NRS 484A.230.
(Added to NRS by 1989, 656; A 1993, 364; 1995, 1151; 2001, 806; 2007, 1913)
The Federal law if enforced would prohibit possessing a firearm within 1000ft of school property, unless you meet the listed exceptions. Having a license to carry, for the state you are in, is one such exception. It references having a license but does not require that you also conceal it, just that the license be for the state that you are in.