Existing Customer Registration

Please complete the form on this page to continue the registration process. Fields marked with an asterisk (*) are required.


To validate your signup, please enter an invoice number from the past six months, and the total amount from that invoice:


Express222: If you have previously registered an electronic CSOS certificate with Letco for online ordering of C2 substances, please enter your old web log-in username to ensure your express222 certificate is copied to your new online account.

If you do not have an account with express222, you should leave this field blank.