OP is a useful overview of the relevant regulations.
And in case anyone disputes the need for regulations, it's worth remembering that any rocket that can put a payload into orbit — any size of payload — is de facto an ICBM: not a very good ICBM by modern military standards, but an adequate one. Expecting your government to pay no attention to your microsat launcher is like expecting them to ignore the unlicensed tank factory in their back yard.