By the Submandatorial Authority of Submandates, it is hereby mandated that all citizens shall wear their pants at a 45° angle to the floor at all times.
This mandate is not optional, and any failure to comply shall result in the immediate application of the dreaded Submandatory Fine.
You may view the Submandatory Fine schedule at Mandate 44 Fine Schedule for more information.
Or, if you're feeling particularly adventurous, you may wish to view the Mandatorial Challenge to see if you can survive the rigors of the Submandatorial Code.