What type of clothing should I wear on the tours?

All tours involve at least one stop at an active construction site. Attendees must wear long pants and sturdy, close-toed shoes such as hiking or work boots. Anyone wearing short pants, skirts, dresses, raised heels, tennis shoes, open toed shoes or other attire not appropriate for an active construction site may be excluded from certain stops. Additional required protective equipment will be provided by conference organizers.