Artificial intelligence (AI) policy: ASHRAE prohibits the entry of content from any ASHRAE publication or related ASHRAE intellectual property (IP) into any AI tool, including but not limited to ChatGPT. Additionally, creating derivative works of ASHRAE IP using AI is also prohibited without express written permission from ASHRAE.

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CHD Resources

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Neither participating in a preparatory activity nor purchasing a publication is a requirement for participating in the CHD program.  Resources available to help prepare for the CHD examination include, but are not limited to, the following:

Resources for CHD Exam Preparation


¹(Member Grade and Associate Grade Members receive Access to the ASHRAE Handbook Online)

ASHRAE Learning Institute (ALI) Archived, Online Courses

ASHRAE Learning Institute (ALI) Online, Instructor-led Training

ASHRAE eLearning On Demand