The audit was intended to look at what issues exist and how Transport Canada is managing those issues. The intent of the audit was not to try to say that these regulations were added, or these regulations were removed. It wasn't that specific. It was trying to look at specific issues that have been identified around rail safety, the issues that have come to Transport Canada's attention and how it is managing those.
One way they may manage them or deal with a particular issue may be through regulatory framework, which may include adding or removing regulations, but that wasn't the goal of the audit.