| DESIGNATION | DATE | STATUS CODE | AUDIENCE LEVEL | TITLE |
| SP-DRFI | 11/17/11 | Issued (12) | Public | Downstream RF Interface Specification |
| To submit an Engineering Change Request (ECR) against a CableLabs specification, please download the CableLabs Engineering Change Request Form (in Word RTF format), fill it out, and then submit the form as an attachment via e-mail to the address specified in the ECR form. | ||||
