Interface Transaction Standards: SIN Usability File

Disclaimer: RDSP issuers

The information contained on this page is technical in nature and is intended for Registered Disability Savings Plan (RDSP), Canada Disability Savings Grant (grant) and Canada Disability Savings Bond (bond) issuers. For general information, visit the RDSP section.

Consult this page frequently for newer versions. The following laws and regulations take precedence over information contained in InfoCapsules in the event of discrepancies:

  • Income Tax Act
  • Canada Disability Savings Act
  • Canada Disability Savings Regulations

9.0 SIN Usability File

As part of ongoing efforts to ensure program integrity, the beneficiary and holder SIN information will be verified monthly with the SIR. As a result of this monthly SIN validation, certain beneficiary and holder SINs will be identified (flagged) by SIR as "SIN is not useable". As well, a beneficiary or holder SIN may have a status of “SIN is useable’. This is a result of SIR re-activating (un-flagging) a beneficiary or holder SIN.

In order to help issuers identify the usability of beneficiary and holder SINs, the CDSP system will be sending out a new file to issuers called the SIN Usability File (SUR) each month. This file will contain a new record type called the RT 921 - SIN usability record consisting of:

  • A header record - type "001"
  • A series of SIN usability records - type "921"
  • A trailer record - type "999".

PURPOSE: The record type “921” reports SIN usability issues to the authorized agent.

Record Type "921"
Data Element Name Type Size Trxn Posn Description  Notes
Record Type X(3) 1-3 "921" - SIN Usability  
Issuer BN X(15) 4-18 BN of the current issuer of the specimen plan/contract associated to the SIN  
Transaction Date X(8) 19-26 Date the record was written to this file. YYYYMMDD
SIN X(9) 27-35 Beneficiary or holder SIN  
SIN Issue X(1) 36 1- SIN is not usable
2- SIN is usable
3- Linked SIN

9.1 Type "921" Validation Rules

Because record type "921" is generated by the CDSP system, validation rules are not applicable.

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