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CHD – Certified HVAC Designer

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Earn a CHD Certification

The CHD certification, managed under ISO/IEC 17024 requirements for ANSI-Accredited Personnel Certification Programs, validates competency to design HVAC systems to meet building/project requirements, including equipment, equipment sizing, load calculations, mechanical equipment room design, duct and piping design and layout, and develop HVAC plans for permit and construction.

  • CHD Advantage

    Why HVAC Designers Pursue the ASHRAE CHD

      • Elevate your reputation among peers, in the workplace and among clients
      • Demonstrate competency in critical HVAC design knowledge, skills and abilities
      • The CHD digital badge guarantees enhanced recognition

    Why Employers Support the ASHRAE CHD

      • Recruit the most-qualified professionals
      • Elevated reputation and credibility among current and potential customers
      • Provides clear, value-added professional development goal
      • Greater employee job satisfaction and higher retention
  • Check Eligibility

    Eligibility Checklist

      • Education and Work Experience
      • Code of Ethics
      • Pass CHD Certification Exam

    Download a Candidate Guidebook to learn more.

    Key Policies

    Review key policies related to Request for Special Accommodations, Impartiality, Certification Complaint Process, Appeal of Certification Denial, and Guidelines for Suspending, Withdrawing or Reducing the Scope of Certification.


    These Certification FAQs can help. Please call 678-539-1105 or email with any additional questions.

  • Apply Now

    APPLY for CHD

    Application Fees

    The ASHRAE member discounted application fee is $395 (non-member – $595). After ASHRAE approves your application to sit for the exam, you will receive instructions how to schedule a computer-based test (CBT) at 1 of over 300 locations.

    Note: Non-native English speakers may apply to receive an additional 30 minutes of testing time.

  • Testing Options

    Testing Center

    Testing centers are available worldwide.

    As part of the global effort to contain and mitigate the impact of COVID-19, ASHRAE testing partner PSI has instituted enhanced procedures which in some cases may include the temporary closing of some of the test centers.

    In the event of temporary test center closing, ASHRAE exam candidates may receive additional time to schedule and sit for their certification exam.

    Remote Online Proctored

    • NEW! Convenient, secure remotely proctored testing will be available July 30
    • Schedule and sit for your exam from your home or office
    • Secure, safe exam delivery with a live, remote proctor

    Learn More


    These Certification FAQs can help. Please email or call 678-539-1105 with any additional questions.

  • Get Exam Ready

    Get CHD exam ready by following these few, easy steps:


    These Certification FAQs can help. Please call 678-539-1105 or email with any additional questions.

Learn More about the CHD Advantage

Learn how ASHRAE Certification Digital Badges are a verifiable and powerful representation of your certification achievement.

The Value of ASHRAE Certification – CHD

Hear Mike Fullerton tell his story.