Maryland instituted new laws starting October 1, 2013 to ensure that anybody applying fertilizer in the state of Maryland does so in a way that is both healthy for the lawn and healthy for surrounding waterways including the Chesapeake Bay. http://mda.maryland.gov/Pages/fertilizer.aspx
More on this to come but rest assured that Jon's Lawns of Annapolis is legal and ready to "green-up" this spring!