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Choose Your Path to Success

NATE Certification represents real-world working knowledge of HVACR systems and validates the professional competency of service and installation technicians. Designed for professional technicians with at least two years of experience, the certification exams consist of questions created by industry experts from across the country.

NATE offers two certification pathways for technicians to choose from to earn NATE Certification: the Traditional pathway or the Certified HVAC Professional (CHP-5) pathway.

With the Traditional Pathway, technicians take the NATE core exam and a Specialty exam. Technicians can choose from multiple Specialty exam options.

With the Certified HVAC Professional (CHP-5) Pathway, technicians earn their NATE certification through a series of five exams, each on a different subject domain: HVAC Fundamentals, Electrical and Controls, Comfort and Airflow, Installation, and Service. NATE designed the CHP-5 to mirror a technician’s on-the-job training.

Technicians must pass all exams in their chosen certification pathway to become NATE Certified.


Once certified, technicians must maintain their certification by earning 18 Continuing Education Hours (CEHs) every two years or retaking their Specialty Exam. Visit our Recertification Page to learn more.

Senior Level Efficiency Analyst

Technicians who are NATE certified and wish to showcase their skill and proficiency have the opportunity to attain the Senior Level Efficiency Analyst certification. This exam evaluates a technician’s comprehension of HVAC system installation, servicing, upkeep, and repair procedures, all of which are essential for upholding optimal energy efficiency levels. Geared towards accomplished senior HVACR technicians, this certification stands as the pinnacle of achievement. To be eligible for the exam, technicians are required to already possess two Service specialty certifications as part of their NATE certification. The two service specialty exams must be one of the following combinations:

  • Air Conditioning (AC) plus one of the following: AD, GS, OL, HG, or HO
  • Air Distribution (AD) plus one of the following: AC, GS, HP, OL, HG, or HO
  • Gas Heating (GS) plus one of the following: AC, AD, or HP
  • Heat Pump (HP) plus one of the following: AD, GS, OL, HG, or HO
  • Oil Heating (OL) plus one of the following: AC, AD, HP, HG, or HO
  • Hydronics Gas (HG) plus one of the following: AC, AD, or HP
  • Hydronics Oil (HO) plus one of the following: AC, AD, or HP

This is an open book exam and technicians can use any of their own materials during the exam. You can view the Knowledge Areas of Technician Expertise (KATE) for the Senior Level Efficiency Analyst exam here.