If trade is the lifeblood of the Imperium, then the starports are the beating hearts. This book details these "gateways to adventure", from humble Class I office modules on a bit of levelled ground all the way up to multi-megaton Class V orbital highports. Rules are given for traffic control, cargo handling, customs, emergency procedures, relations with local planetary authorities and the extra-territoriality "XT" line. A detailed guide to building starports is given, as well as support vehicles, example starports, and plans for typical starport facilities.