# The Outer Dowsing Offshore Wind Farm Order 2026, Paragraph 4


The substances or articles authorised for deposit at sea are—
(a) iron and steel, copper and aluminium;
(b) stone and rock;
(c) concrete and grout;
(d) sand and gravel;
(e) plastic and synthetic;
(f) material extracted from within the offshore Order limits during construction drilling and seabed preparation for foundation works;
(g) weights used for the calibration of vessels, consisting of a hessian sack, metal shackles or chains; and
(h) marine coatings, other chemicals and timber.

---
Source: https://www.legislation.gov.uk/uksi/2026/138/schedule/13/paragraph/4 (the official version)
Page: https://openlegislation.uk/outer-dowsing-offshore-wind-farm-order-2026/schedule-13/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.