then we encourage you to use Microsoft's Internet Explorer Web browser. Other browsers may be incompatible with completing these transactions. Using them may result in error messages and cause problems with payment processing. You can download the latest version of Internet Explorer here.
If you wish you can download a paper form and fax it to (301) 306-7090 or mail it by postal mail to:
CHADD National Office
8181 Professional Place, Suite 150
Landover MD 20785