20.—(1) In any case where the noise levels specified in requirement 18 or otherwise agreed in writing for monitoring locations is exceeded because of an emergency, the undertaker must notify Central Bedfordshire Council in writing of the nature of the emergency within 2 working days, the reasons for exceeding the noise limit and its expected duration.
(2) If the period of excess noise is expected to last for more than 24 hours then the undertaker must inform any community liaison panel or any other consultative body established as a result of the authorised development, the relevant planning authorities and adjoining occupiers or land users.
(3) Notification of the excess, the reasons for it and its expected duration must also be posted on the undertaker’s internet web site.