I think that's very clearly a decision that you should make. The word “mandatory”, for example, assigns to all sorts of things: where I park my car, or how fast I drive on the highway. It's mandatory that I not drive speaking on a cellphone. The fines associated with non-compliance with those laws are under the auspices of our various levels of government, including the government here.
On July 27th, 2010. See this statement in context.