To become a licensed Refrigeration Contractor (C-21A) in the state of Nevada, you are required to pass an open-book exam. We offer the books, tabs, and a fully online and inclusive educational course to prepare you to sit for the Nevada Refrigeration Contractor (C-21A) exam. @HomePrep is a National Leader in online education. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you - Invest in Yourself.
About this License
This license covers the construction, erection and installation of devices, machinery and units for the control of air temperatures below 50oF in refrigerators, refrigerated rooms and insulated spaces, and installation of any related insulation, ducts, blowers, registers, controls over humidity and thermostatic controls, lines for supplying natural gas from the unit to the point of connection in the existing line for natural gas at the meter or at any point thereafter, electrical service from the unit’s device to protect against excessive current to the main electrical panel, but not the installation of other gas or electric services for the devices, machinery or units.