I wasn't even politically active when this thing was passed but I'll take a crack at it.

(b) of CA 10.2 means you need to;

first, propose a CA for the territory you wish to be part of the Reich

second, get a 2/3 vote for that CA to pass

if CA passes, the territory is part of the Reich and becomes Imperial until the Kaiser gives it to a house

if CA fails, the territory is to be abandoned or given away

if no one proposes a CA for a newly captured territory, then it is to be abandoned or given away.

How am I doing?