Half the time, half the price

Accelerated Training

Phius offers a special fast-track training for PHI-certified professionals who want to upgrade their knowledge, earn the Phius CPHC® credential and join the CPHC community. The training fits into the same framework as the typical CPHC training but with reduced time commitment for the Phase I, self-paced content. Proof of a CPHD certificate is required for acceptance.
Review the CPHC Course Structure

Benefits of Accelerated CPHC Training

  • The full training fee is half the price of the regular CPHC training course but provides full access to all of the same content.
  • Fewer Phase I modules are required to move on to Phase II, providing a quicker route to the CPHC credential.
  • Covers designing to Phius' cost-optimized, climate specific standards as well as how to implement a rigorous quality assurance process throughout design and construction.
  • Includes detailed live instruction on WUFI Passive modeling software, equipping professionals with the tools they need to succeed.

How long does it take?

The full course + exam is intended to be completed in less than 12 months, including the two-part professional certification exam.

Accelerated Training Timeline


Upon acceptance into the program, students are granted access to register for Phase I and prompted to select from a list of scheduled live sessions for Phase II.

CPHC Phase I Training

Months 1-4

Self-guided instructional modules with 6 hours of required content and an additional ~40-50 hours available for review. This phase is intended to be completed over 1-4 months, but can be completed in as little as a week for the accelerated course with only 6 hours of required content. It covers the Phius Certification process, building science, building assemblies, HVAC systems, baseload and renewable energy systems, and passive building physics.

CPHC Phase I Exam

The Phase I exam consists of multiple choice and multi-select questions. It is focused on building science principles, Phius Certification standards and requirements, and applied passive building physics through calculation questions.

The exam will become visible upon completion of the Phase I content. A self-guided CPHC exam preparation course is included. The score for this exam is available immediately after submission; a passing score is required for CPHC Certification.

It is highly recommended to finish Phase I before moving on to Phase II.

CPHC Phase II Training

Anytime, months 2-10 following Phase I.

Phase II consists of instructor-led live sessions with a cohort of other CPHCs-in-training. This phase is focused on putting Phase I concepts into practice. It includes group design exercises, completing a WUFI Passive energy model on a sample project, and guidance on the profession of being a Phius Certified CPHC.

This phase spans 2 weeks and is split into eight, 3-hour sessions with a total of 24 hours of live instruction. Group exercises may require 2-3 hours outside of the scheduled live sessions.

CPHC Phase II Design Exam

The design exam is focused on applying passive building principles on a sample project. The submission is a rough passive building design, concentrated on the elements specific to passive building and Phius Certification. The scope is guided by a checklist rubric provided with the exam.

The design exam opens at the end of Phase II, and is due 4 weeks later.

The grade for this exam will be returned to students 4 weeks after the submission due date.


Upon passing the exams, new professionals sign a trademark agreement. They are then listed in the online professional database, receive professional logos, and are provided with a FREE year of Phius Alliance membership. The certification is valid for 3 years.

Continuing Education

All Phius Certified professionals gain 3-year accreditation which can be extended through a variety of renewal paths.

Continuing Education Credits

AIA (American Institute of Architects)

Phase I: Earn 40 LU/HSW units, Phase II: Earn 40 LU/HSW units

GBCI (Green Building Certification Inc.)

Earn 32 CEU

BPI (Building Performance Institute)

Earn 37.13 CE credits

Phius CEUs

Phase I: Earn 32 Phius CEUs, Phase II: Earn 24 Phius CEUs