Information for CLS Users

The CLS User Portal is your primary source of information for all things related to your CLS Project(s). Log in to manage your experiment, from proposal submission and safety reviews to team membership and samples to reporting your publications. To complete CLS training required for your beamtime, log into the Training Portal with the same account information you use to access the User Portal.

Do not hesitate to contact the User Services Office at with any questions or concerns.

Call for Proposals

The Canadian Light Source (CLS) conducts a Call for Proposals twice per year, accepting proposals for peer-reviewed access to beamtime in the upcoming cycle.

Cycle Scheduling Period Call Open Call Close PRC Meeting (Week of) Results Announced (Week of)
39 Jan-Dec, 2024 July 26, 2023 Aug 23, 2023 Oct 23, 2023 Nov 13, 2023
38 July-Dec, 2023 Jan 25, 2023 Feb 22, 2023 April 24, 2023 May 8, 2023
37 Jan-June, 2023 July 27, 2022 Aug 24, 2022 Oct 24, 2022 Nov 7, 2022

User Code of Conduct


As a condition of access to Canadian Light Source facilities, all CLS users must comply with the CLS User Code of Conduct.