ISPRS is supported financially by four main membership categories: Ordinary Members, Associate Members, Regional Members, and Sustaining Members. All fees are payable on an annual basis.. It is the responsibility of each member to pay their full membership fee each year in Swiss Francs or the equivalent in USD or Euros. All banking fees at the originating bank are to be paid by the Member.

1. Each Ordinary Member (ODM) organization remits fees to the Treasurer of ISPRS on a scale broadly related to the number of photogrammetrists and remote sensing specialists it represents.

   Ordinary Membership is arranged in eight (8) categories as follows:
   

   Number of Active
    Specialists        Category       Annual Subscription
   -----------------------------------------------------------------
    Less than 26           1            115  Swiss Francs
        26 -  50           2            230  Swiss Francs
        51 - 150           3            690  Swiss Francs
       151 - 250           4           1150  Swiss Francs
       251 - 400           5           1840  Swiss Francs
       401 - 600           6           2760  Swiss Francs
       601 - 800           7           3680  Swiss Francs
   More than 800           8           5520  Swiss Francs
   

   Ordinary Member organizations select their own category and may at any time increase their category but may not lower their category without previous approval by the General Assembly.

   Voting rights at quadrennial General Assemblies is tied directly to the category number. Category 8 members cast 8 votes; category 1 members cast 1 vote on each voting issue. Ordinary members have an incentive to increase their category during the Congress.

2. Each Associate Member (AsM) organization remits fees to the Treasurer of ISPRS on a scale broadly related to the number of photogrammetrists and remote sensing specialists it represents.
   Associate Membership is arranged in four (4) categories as follows:

   
   Number of Active
    Specialists        Category       Annual Subscription
   -----------------------------------------------------------------
    Less than 51           1            115  Swiss Francs
        51 - 250           2            690  Swiss Francs
       251 - 600           3           1380  Swiss Francs
   More than 600           4           2760  Swiss Francs
   
   

3. The annual contribution paid by Regional Members (RgM) is 115 Swiss Francs

    

4. Sustaining Members (StM) pay an annual fee according to the number of employees in their organizations defined by the five categories below:
    

     Category        Num.Specialists              Annual Subscription
   -----------------------------------------------------------------------
        A         more than 750 employees          3450  Swiss Francs
        B             100 - 750 employees          1725  Swiss Francs
        C              25 - 100 employees           920  Swiss Francs
        D                1 - 25 employees           460  Swiss Francs
        E         Educational Institutes            250  Swiss Francs
   

5. All financial responsibility for the Congress and Commission Symposia is entrusted to the Ordinary Member host organization. The Society does not provide funds for these activities.

6. The Ordinary Member organization which hosts a Technical Commission is entrusted with complete financial responsibility for all expenses incurred by the work of the Commission.

7. Chairpersons of Working Groups are required to be financially able to attend the mid-term Symposium of their Commission and the quadrennial Congress.
8. The financial affairs of the Society are examined by a Financial Commission elected by the General Assembly.

For payment instructions or questions concerning annual fees,

please contact ISPRS Treasurer