[MARYLAND (MD) Master HVAC/R Contractor Exam Success Course] The Maryland Master HVAC/R Contractor Practice Course is designed for experienced professionals seeking master-level certification in heating, ventilation, air conditioning, and refrigeration (HVAC/R). This comprehensive course covers advanced topics related to HVAC/R system design, installation, maintenance, and troubleshooting. Participants will explore various systems, including residential, commercial, and industrial applications, with a focus on understanding complex HVAC/R technologies, energy efficiency, and regulatory compliance. The curriculum includes hands-on training, practical exercises, and case studies to develop technical skills and problem-solving abilities. Emphasis is placed on Maryland state regulations and industry standards. By completing this course, learners will be well-prepared to achieve master certification and excel in HVAC/R contracting.