Originally Posted by pandaperth

Correct, just Europe/Middle East - North America - Asia

One of the rules is that you must visit each TrafficTariff Conference (TC) in turn with no backtracking
TC1 = North America and South America
TC2 = Europe/Middle East And Africa
TC3 = Asia and South West Pacific

ETA:
Should have thought of adding this earlier: - a snippet from the soon to be new wiki to this thread:

The ticket rules divide up the world into three “TrafficTariff Conferences” (TC) each having two continents; as follows:
TC1 = North and South America
TC2 = Europe/Middle East and Africa
TC3 = Asia and South West Pacific (SWP)

Notes:
Europe/Middle East includes the countries of North Africa (Morocco, Algeria, Tunisia, Libya, Egypt, Sudan)
Russia is split between Europe/Middle East and Asia (the split is at the Ural Mountains),

Main Routing Rules:

• You must visit all three TrafficTariff Conferences – you will of course be starting in one of them, so you must visit the other two in order (travelling either eastbound or westbound), and complete your RTW journey by returning to your starting TC; generally you must return to your starting country (there are exceptions - see More Rule Details below for more information)
• Within a TC, you can visit either or both continents
• Within a continent you can travel about in any direction you like

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