Part 1: Digital Markets Chapter 4: Pro-Competition Interventions Section 53: Duration and revocation etc of pro-competition orders
This section sets out the provisions for a pro-competition order ceasing to have effect, either by the CMA revoking the order, or by the designated undertaking’s relevant digital activity ceasing to be designated with SMS.
	Subsection (3) sets out that the CMA may revoke a pro-competition order where it considers it appropriate to do so. When considering whether it is appropriate to revoke a pro-competition order, the CMA must in particular have regard to where there have been changes in circumstances. For example, this could occur if new legislation which affects the carrying out of the pro-competition order were implemented. Section 54(3) requires the CMA to consult before revoking an order under this subsection.
	Subsections (4), (5) and (6) set out that the CMA must give notice to the designated undertaking of its decision to revoke a pro-competition order. This includes details of any transitional, transitory or saving provision being made in relation to the revocation. The CMA must publish the notice as soon as reasonably practicable.
	Subsection (7) provides that where a pro-competition order is revoked without being replaced, the CMA is not able to subsequently introduce another pro-competition order based on the initial PCI investigation. The CMA would need to carry out a new PCI investigation.
	Subsection (8) allows the CMA to exercise its digital markets functions in relation to potential and actual breaches of a pro-competition order where the order is no longer in place. This enables the CMA to investigate and enforce against historic breaches.