Become a Member Click here to download the membership application in its PDF format. Complete and fax to HACIA at (312) 666-5692. To have a membership application faxed or mailed to you, please contact HACIA at (312) 666-5910. You will require Acrobat Reader to view the application. If you do not have Acrobat Reader, you can download a free copy from the Adobe website. HACIA Membership Application