With our transportation of dangerous goods rules and rail safety rules we prioritize the sites based on the sort of risk they bring forward. For example, if a site hasn't been inspected in a number of years or if it has a history of non-compliance, we will inspect it more frequently, even on an annual basis. That's generally our approach in addition to what I just mentioned to Mr. Hardie a few moments ago.
On February 21st, 2019. See this statement in context.