All except the unlawful are permitted landing rights through the Athist planetary shield, and the approved landing list will be maintained with this in mind.
If your affiliation is so new it didn't make the list or so secret I have not heard about it then you will need to get in touch with bcd on Nexus, or message Athist City (18637) asking for access. Be prepared to bring evidence that you actually exist.
Investigate the "Landing Rights" section of the Athist planet map to find out if you are currently allowed to land there.
Affiliations may be removed from the landing list if they are found to be using their privileges to the detriment of the people of Athist.
