When you say there's nothing comparable, in British Columbia this is done routinely for regulations as per the Statutory Instruments Act and for legislation. It's routinely done by attorney general lawyers. Whether it exists as a practice or whether it is in statute, they provide, I'm told, a much higher standard than what exists under the federal 4.1 rule.
Evidence of meeting #2 for Justice and Human Rights in the 42nd Parliament, 1st session. (The original version is on Parliament’s site, as are the minutes.) The winning word was statistics.
A video is available from Parliament.