878. Effect of orders.

878.     Effect of orders.

The licence holder1 to which a final or provisional order2 relates has a duty to comply with it3, and the duty is owed to any person who may be affected by a contravention of the order4. A breach of the duty which causes such a person to sustain loss or damage is actionable by him5, but in proceedings brought against a licence holder, it is a defence for the licence holder to prove that it took all reasonable steps and exercised all due diligence to avoid contravening the order6. Compliance with a