Engineers and Geoscientists BC

Updates to Part 4 of the 2023 BC Building Code

Monday, November 27, 2023
Registration/Log-In: 11:50 AM–12:00 PM Pacific time
Webinar: 12:00 PM–1:30 PM Pacific time
Advanced registration is closed. Please contact Jennifer Chan at [email protected] for inquiries.

Eligible for 1.5 CE Hour(s) of Technical Learning

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Event Details


Jennifer Chan | Senior Professional Development Coordinator
Direct: 604.412.4861
Toll Free: 1.888.430.8035 ext.4861
Fax: 604.639.8180
Email: [email protected]

Event Presenter(s)

John Sherstobitoff, P.Eng.
Ausenco Engineering Canada Inc.

Grant Newfield, P.Eng., Struct.Eng., B.Sc., M.Eng.
Principal, Read Jones Christoffersen Ltd.

Event Description

The new 2023 BC Building Code (BCBC) will become effective in the coming months and will apply to building permits applied for on or after that date. Engineers and Geoscientists BC is coordinating efforts with the Building Officials Association of BC, the Architectural Institute of BC, and others to provide training on BCBC changes.

About the Event

This webinar will focus on the major changes to Part 4 in the NBC 2020 and BCBC 2023 and how they affect the practice of engineers. Examples include:

  • Section 4.1.8 Earthquake Load and Effects 
  • Changes in seismic hazard that will increase earthquake lateral load demand
  • Benefit of determining Vs30 in-situ for some/most sites
  • New Article regarding additional performance requirements for post-disaster buildings, high importance category buildings, and a subset of normal importance category buildings
  • All other changes will also be covered




Mr. Sherstobitoff is a structural engineer with over 35 years of experience, focusing on earthquake engineering since 1990. As Principal, Seismic and Structures, at Ausenco, he is the corporate seismic specialist. John was the chair of the Standing Committee on Earthquake Design (SC-ED) for 10 years, including the time when the earthquake design revisions now implemented in NBC 2020 were prepared. He was the chair for SC-ED’s working group regarding base isolation and damping (new provisions regarding design of buildings with these systems, as implemented in NBCC 2015) and chair for its task group on resilience and performance based design (new Article implemented in NBCC 2020). He continues as a committee member (working on revisions for seismic provisions for the next code update NBCC 2025).



Grant graduated from the University of Calgary in 1989 and completed his master’s at McGill University. He is a member of the BC Advisory Group on Advanced Wood Design Solutions, co-authoring guidelines that support code changes revising the 4-storey limit to 6-storey both in the BCBC and NBCC. He has authored several guides, given numerous presentations, and provided support for Michael Greens Tall Wood Study, FP Innovations CLT Guideline, and Tall Wood Guideline.

A respected champion for innovations in wood design and increases in the use of mass timber systems, Grant’s work has pushed the height limits of traditional wood-framed structures both in practice and through code development. He also leads high-rise and developer-oriented projects, considering costs and buildability to develop the right solution to maximize pro formas and deliver architectural vision. While his projects are often complex in nature, he brings simplicity to design, seeking practical and effective solutions. His practical sense comes from his life lessons working with wood and concrete on personal projects.