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General Information - Software Licensing Supply Arrangement (SLSA)

Changes to the SLSA:

new 2015-09-01 — Changes to Acquisitions under the Software Licensing Supply Arrangement (SLSA)

Following the coming into effect, on September 1, 2015, of Order in Council 2015-1071 under the Shared Services Canada Act, responsibility for certain information technology procurements and related instruments previously managed by Public Works and Government Services Canada (PWGSC) will be transferred to Shared Services Canada (SSC).

Under the Order in Council, PWGSC will continue to manage the Software Licensing Supply Arrangement (SLSA); however, certain software categories within the SLSA will now be restricted for the exclusive use of SSC.

Partners and clients of SSC must now order software via SSC for software relating to the email, network, data centre, and end-user information technology.

To assist departments and suppliers, the Annex G - Software Categories & Descriptions has been modified to clearly identify which entity is responsible for specific software categories. This list is available on the Annex G - Software Categories & Descriptions webpage and indicates categories where software procurements will:

  1. continue to be acquired by departments under the delegated authorities provided by PWGSC, or through PWGSC directly;
  2. now be acquired exclusively through SSC; and
  3. may fall under the SSC mandate or not, depending on the context.

Where there is uncertainty, individual requirements will be assessed on a case-by-case basis. Departments should forward their requirement request to SSC for determination. SSC will consult with PWGSC to determine which entity will process such requirements.

Please visit the SSC Services Catalogue (, which is available to all of SSC partners and clients. This will provide more detailed instructions on the SSC ordering process.

Should you have any additional questions, please contact:

Step by Step instructions on the process to identify the software category and subsequently the proper procurement authority are available only for Approved Client and PWGSC Authorities at: the SLSA Process GCPedia Webpage.

SLSA Overview:

Welcome to the Software and Shared Systems and Procurement Directorate's New Method of Supply, the Software Licensing Supply Arrangement (SLSA).

The SLSA officially replaced the software Departmental Individual Standing Offers (DISO).

The SLSA is a two-phased procurement process. The first phase consists of suppliers qualifying through the SLSA Request for Supply Arrangement (RFSA) permanently posted on GETS. Once qualified, suppliers list their products and ceiling prices in the publicly available SLSA Catalogue. Based on the information in the SLSA Catalogue, the second phase consists of the approved PWGSC and Client authorities competing their requirements via Request For Quotations (RFQ), simplified Bid Solicitations or through Sole Sourcing if the mandatory justifications are met

For additional information please communicate with the SLSA Team via email at

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