Turkish Maritime Pilots Association - Providing information on Turkish Straits and the safety of maritime transportation. Danish Pilotage Service - Danish government licensed pilots offering pilotage through Danish waters to and from any destination in Denmark and to ports in the Baltic Sea. Houston Pilots - Pilot services for the Port of Houston, Texas. Columbia River Pilots Association - Pilotage services for the Columbia River. International Maritime Pilot Association - IMPA is a professional non profit making international technical association. The objective is to gather together pilot associations worldwide to enable them to compare their experiences and problems. Espirito Santo State Pilots Brazil - Pilot services and ships in port.