Here below, links to the registration forms for the participation categories.
(Observer, Member)

1 : For Members paying by check and for  Observers.

2 : For Members paying by PayPalbank card 

In the form you will be invited to specify your participation.

1 : For those who wish to register and who prefer to pay their dues by check.

This form applies also to Observers (participation without dues).

2 :  For those who wish to register and who prefer to pay their dues by  PayPal or bank card.