**************************************************
Procedure for the management of sustaining members
**************************************************

* first contact could be made to treasurer (finance@qgis.org) or another person within the PSC
* the treasurer will clarify all details (such as contact information and address, permission to use organizations logo on our sustaining membership page) and will issue an invoice 
* treasuer checks whether the payment has arrived
* management of sustaining members is done at our `Projecta website <https://changelog.qgis.org/en/qgis/members/list/>`_
* sustaining members are sorted by level (flagship, large, medium, small) and the date they were introduced or renewed (newer ones first)
* past sustaining members are listed separately, only for a period of two years.
* logos of flagship, large and medium sustaining members are included in the footer banner on our start page
* sustaining members are listed in our visual changelog
* when appropriate, we will do some social media promotion.