Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, if he will publish the reasons for which a universal credit claimant's transitional protection might be (a) reduced and (b) ended.

This was published in 2018: see the report to Social Security Advisory Committee (SSAC): Universal Credit (Managed Migration) Regulations 2018 (publishing.service.gov.uk)