The following materials are required for the D2 Prep course:
International Mechanical Code, 2009, 2012 or 2015 Editions allowed
2012 NFPA 54 Fuel Gas Code
OSHA Standards 29 CFR Part 1926
Modern Refrigeration & Air Conditioning, 19th or 20th Edition
ACCA Ductulator
2005 HVAC Duct Construction Standards (optional)
This book is allowed in the exam room but is optional for this prep course.
2014 NFPA 58: Liquified Petroleum Gas Code (optional)
Optional materials are:
- 2005 HVAC Duct Standards (This book is allowed in the exam room but is optional for this prep course.)

Attendees arriving without full set of materials will be rescheduled for the next date.

The following materials are required for the S2 Prep Course:
International Mechanical Code, 2009, 2012 or 2015 Editions allowed
2014 NFPA 58 Liquified Petroleum Gas Code
2006 or 2011 NFPA 31 Standard for the Installation of Oil Burning Equipment
2012 NFPA 54 Fuel Gas Code
OSHA Standards 29 CFR Part 1926
Modern Refrigeration & Air Conditioning, 19th or 20th Edition
ACCA Ductulator
2005 HVAC Duct Standards (optional)
This book is allowed in the exam  room but is optional for this prep course.
NFPA 56: Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems, Current Edition (optional)

Attendees arriving without full set of materials will be rescheduled for the next date.