A harbourmaster (or harbormaster, see spelling differences)'s an official responsible for enforcing the regulations of a particular harbour or port, in order to ensure the safety of navigation, the security of the harbour and the correct operation of the port facilities. Responsibilities Harbourmasters are normally responsible for issuing local safety information sometimes known as Notice to Mariners. They may also oversee the maintenance and provision of navigational aids within the port, co-… (More on Harbourmaster)