[NEVADA (NV) C?21 Refrigeration & Air Conditioning Contractor Exam Success Course] The Nevada C-21 Refrigeration & Air Conditioning Contractor Practice Course provides comprehensive training for professionals involved in refrigeration and air conditioning contracting. This course covers essential topics such as refrigeration system design, air conditioning installation, maintenance practices, and regulatory compliance. Participants will gain practical knowledge of various cooling systems, including residential and commercial units, with a focus on Nevada state regulations and industry standards. The curriculum includes hands-on training, practical exercises, and real-world case studies to develop expertise in managing refrigeration and air conditioning projects. Emphasis is placed on understanding system performance, ensuring efficiency, and adhering to safety practices. By completing this course, professionals will be well-equipped to handle refrigeration and air conditioning projects, achieve certification, and advance their careers in the HVAC industry.