The threat of port strikes across North America continues to send jitters across already stressed supply chains. Canada’s Industrial Relations Board (CIRB) over the weekend ruled that a planned 72-hour strike against DP World in Canada went against the country’s labour code, narrowly averting a three-day shutdown this week. The ILWU Ship & Dock Foremen Local 514 had given formal notice to its employer on Friday for action to start on Monday leading to a frantic weekend of negotiations and discussions to avoid a strike (source: Splash247).