Washington DC Master A/C & Refrigeration Mechanical Unlimited - Online Exam Prep Course

Get one step closer to becoming a Washington DC Master A/C & Refrigeration Mechanical Unlimited Contractor with a prep course designed by 1ExamPrep to help you conquer the required examination.

Use the online course structure to tailor your prep to your individual learning style. You’ll have a full year of access to the online course.

• Test-taking techniques
• Highlights and Tabs locations for all reference materials
• Practice questions in printable pdf format 
• 1 year of online access

Android and iOS Compatible - Complete the course on your phone, anytime or anywhere.