14.—(1) The contract-holder must take reasonable steps to ensure the dwelling is secure.
(2) The contract-holder may change any lock on the external or internal doors of the dwelling provided that any such changes provide no less security than that previously in place.
(3) If any change made under paragraph (2) results in a new key being needed to access the dwelling or any part of the dwelling, the contract-holder must notify the landlord as soon as reasonably practicable and make available to the landlord a working copy of the new key.