An RTB Determination Order is legally binding, but the RTB does not act as a debt collector or carry out the order itself. If a tenant does not comply, the landlord can generally apply to the District Court for enforcement, using the RTB order and relevant tenancy records as evidence. A landlord must not use self-help measures such as changing the locks or removing the tenant without following the legal process. The court’s response depends on the order and the facts, so consider getting advice from a solicitor or checking the RTB’s current enforcement guidance.