The Colorado (Denver) Refrigeration Operator Tab Pack contains the following pre-printed approved tabs:
- 2015 International Mechanical Code
- 2014 National Electrical Code – NFPA 70
- Modern Refrigeration and Air Conditioning
The Colorado (Denver) Refrigeration Operator Exam Prep materials are available for purchase from our online contractor’s bookstore or by calling our office at 1-800-952-0910.


