# The Areas of Archaeological Importance (Notification of Operations) (Exemption) Order 1984, Paragraph 6


Operations for the repair, maintenance, relaying or resurfacing of a highway within the meaning of the Highways Act 1980 or of a footpath as defined in that Act, or of a railway;
provided that such operations do not disturb the ground below a depth of 600 millimetres or below the existing foundations, if deeper.

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Source: https://www.legislation.gov.uk/uksi/1984/1286/schedule/paragraph/6 (the official version)
Page: https://openlegislation.uk/areas-of-archaeological-importance-notification-of-operations-exemption-order-1984/schedule/paragraph-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.