First off, any claimant who has been doing some work while on claim would have been eligible to receive this treatment, with the exception of maternity and sickness claimants, where currently they face dollar-for-dollar reductions. Otherwise, anyone who was receiving regular benefits for job loss, fishing benefits, parental benefits, or compassionate care benefits—I think I've caught them all—would have automatically been eligible for this measure.
On May 8th, 2018. See this statement in context.