Pat Cuthbert of Aqua-Coast Engineering presented this webinar with an overview of the upper Step Code targets and how they differ from the lower steps. He also outlined the role of the Energy Advisor in the design and permit application process, and best practices for architecture and building enclosure design for the upper steps. It included a summary of airtightness testing requirements and best practices, as well as best practices for mechanical (HVAC and DHW) design for the upper steps. He also shared examples of Part 9 projects that meet the upper steps, and led a brief discussion on occupancy thermal comfort (i.e. overheating) and how it relates to the upper steps. Township of Langley staff provided an update on the upcoming Step 4 requirements.