Question:
The final sentence of this rule seems to contradict the previous one. If in order to function as a limited supply source a standard or minor port must trace a naval element supply line to a major or great port, what does the last sentence of this rule mean when it states,”…supply line may be traced from a minor or standard port.”?
Answer:
The last sentence allows you to trace a naval supply line from a standard/minor port; it has nothing to do with tracing the line to a major/great port. Instead, see Rule 12B4, which governs naval supply lines and says you have to trace from a major/great port. 12B4/12C1 is the general case, allowing both sides to get full regular supply via naval supply lines. 12C2 is the special case for the Allies, allowing them to get limited regular supply by using ports that don’t make the cut for 12B4/12C1.
Source:
TEM 38/39

