The term COM PRECEDER is composed of three parts: DOT, NON, and PRECEDER. DOT is a three-letter acronym for 'Department of Transportation, ' which is a federal agency responsible for the regulation of transportation in the United States. NON is a three-letter acronym for 'National Oceanic and Atmospheric Administration, ' which is a federal agency responsible for the management of the nation's oceans, coasts, and atmosphere. Finally, PRECEDER is a verb meaning 'to come before something else in time or order.' Together, these three words form the term COM PRECEDER, which refers to the process of coming before something else in the order of communication.