ONLINE REGISTRATION COMES TO IYB and CASS PARK RINK and POOL Go To: https://register.communitypass.net/IthacaYouthBureau to set-up your account today. Follow the on-line directions to set up your account. Include all family members (adults and children). Get your account validated. Fax, email, mail or walk in proof of your residence to the Ithaca Youth Bureau or Cass Park. A driver license, utility bill, tax bill, lease agreement – a document with your name and address on it. Your account is now open to register for lessons, programs, sports, passes, etc. Have questions? Need help? Call us at 607-273-8364