MD Journeyman Restricted Refrigeration Certification Exam

MD Journeyman Restricted Refrigeration Restricted licenses in Maryland require demonstrating proficiency with low-charge systems? typically under 10 pounds of refrigerant? which operate under fundamentally different physics than high-capacity industrial equipment. This exam isolates exactly those constraints leak detection methods specific to minimal charge volumes, evacuation procedures that prevent contamination in tight spaces, and compliance with EPA regulations governing small-system servicing. Most prep materials blur residential and commercial, but Journeyman Restricted focuses solely on what you’ll actually troubleshoot in the field.