OFDA is a non-profit association of office furniture shippers which accounts for over 85% of the nation's shipments in interstate commerce. Their common bond is that they all ship office furniture in less-than-truckload and volume shipments and therefore have common interests and problems. They are kept well informed through the medium of a monthly traffic newsletter which brings them news of pending rate and rating increases, changes in rules and regulations, regulatory decisions, new packing requirements and any other transportation or distribution matters on both the national and regional levels for all modes of transportation.