The HRAI Residential Air System Design Technician (RASDT) Designation was established in partnership with Natural Resources Canada (NRCan). The designation is awarded to all individuals who hold current certification for the following four HRAI training programs: Residential Ventilation using Section 9.32 of the Building Code (as of September 1, 2019), Residential Heat Loss & Heat Gain Calculations, Residential Air System Design and Residential Commissioning. 

The HRAI Residential Hydronics Design Technician (RHDT) Designation was established in partnership with Natural Resources Canada (NRCan). The designation is awarded to those who hold current certification for the following four HRAI training programs: Residential Ventilation using Section 9.32 of the Building Code (as of September 1, 2019), Residential Heat Loss & Heat Gain Calculations, Residential Radiant Hydronics Design and Residential Commissioning.

The new HRAI Residential Ventilation Design Technician (RVDT) Designation has been established and will be awarded to those who hold current certification for the following four HRAI training programs: Residential Ventilation using Section 9.32 of the Building Code, Residential Ventilation using CSA F326, HRV/ERV Installation & Balancing Fundamentals and Depressurization Testing of Residential Systems.

On the HRAI Certification Listing RASDT, RHDT and/or RVDT will appear following the name of each individual who has achieved the designation to date.