Electronic payment is now accepted for the renewal of radiation-producing machine registrations. Click on the Greenport link below and create a Greenport account. The user name created is needed to complete the Electronic Filing Administrator Form (EFA). Scan and email the completed EFA to the email address included on the form. Once the email is received, a link will be made with the registration requested. The registrant will then receive a confirmation email with a notice of ability to pay electronically.