{
  "url": "https://openlegislation.uk/mona-offshore-wind-farm-order-2025/schedule-14/paragraph-17",
  "json_url": "https://openlegislation.uk/mona-offshore-wind-farm-order-2025/schedule-14/paragraph-17.json",
  "legislation": "uksi/2025/870",
  "legislation_title": "The Mona Offshore Wind Farm Order 2025",
  "legislation_url": "https://openlegislation.uk/mona-offshore-wind-farm-order-2025",
  "path": "schedule/14/paragraph/17",
  "kind": "paragraph",
  "number": "17",
  "heading": "Pre-construction plans and documentation",
  "text": "(1) No part of the authorised scheme may commence until the following (insofar as relevant to that activity or phase of activity) have been submitted to and approved in writing by the licensing authority (in consultation with the relevant statutory historic body, the statutory nature conservation body, Trinity House or the MCA as appropriate)—\n(a) a design plan at a scale of between 1:25,000 and 1:50,000 in accordance with the layout principles, including detailed representation on the most suitably scaled admiralty chart, setting out proposed details of the authorised scheme, including the:\n(i) number, dimensions, specification, foundation type(s) and depth for each wind turbine generator and offshore substation platform;\n(ii) confirmation of whether Work No. 1 (c) and (d) are to be constructed under this marine licence;\n(iii) the proposed layout of all wind turbine generators and offshore substation platforms (which shall be in accordance with the recommendations for layout contained in MGN654 and its annexes), including grid coordinates of the centre point of the proposed location for each wind turbine generator and offshore substation platform subject to up to 55 metre micro-siting in any direction unless otherwise agreed in writing with the licensing authority in consultation with the MCA and Trinity House;\n(iv) proposed layout of all cables;\n(v) location and specification of all other aspects of the authorised scheme; and\n(vi) any archaeological exclusion zones;\nto ensure conformity with the description of Work No. 1 and compliance with conditions 9 and 10 and any wake effects plan approved by the Secretary of State in accordance with requirement 29;\n(b) a construction programme to include details of—\n(i) the proposed date of commencement of the authorised scheme;\n(ii) proposed timings for mobilisation of plant delivery of materials and installation works;\n(iii) an indicative written construction programme for all wind turbine generators and offshore substation platforms forming part of the authorised scheme and licensed marine activities;\n(c) a monitoring plan in accordance with the offshore in-principle monitoring plan and including details of proposed pre-construction surveys, baseline report format and content, construction monitoring, post-construction monitoring and related reporting in accordance with conditions 23, 24, 25 to be submitted to the licensing authority in accordance with the following unless otherwise agreed in writing with the licensing authority—\n(i) at least four months prior to the first survey, detail of the pre-construction surveys and an outline of all proposed monitoring;\n(ii) at least four months prior to commencement of construction, detail on construction monitoring;\n(iii) at least four months prior to the authorised scheme being brought into commercial operation scheme, details of post-construction monitoring, if required;\n(d) an offshore construction method statement in accordance with the construction methods assessed in the environmental statement, including details of—\n(i) cable specification, installation and monitoring, to include—\n(aa) the technical specification of the inter-array cables and interconnector cables as relevant;\n(bb) a detailed cable specification and installation plan for the authorised scheme, incorporating a cable burial risk assessment encompassing the identification of any cable protection that exceeds 5 percent of navigable depth referenced to Chart Datum and, in the event that any area of cable protection exceeding 5 percent of navigable depth is identified details of any steps (to be determined following consultation with the MCA and Trinity House) to be taken to ensure existing and future safe navigation is not compromised or similar, such assessment to ascertain suitable burial depths and cable laying techniques including cable protection; and\n(cc) details of cable monitoring including details of cable protection until the authorised scheme is decommissioned which includes a risk-based approach to the management of unburied or shallow buried cables;\n(ii) scour protection management and cable protection management including details of the need, type, sources, quantity and installation methods for scour protection and cable protection, (with details updated and resubmitted for approval if changes to scour and cable protection management are proposed following cable laying operations);\n(iii) foundation installation methodology, including drilling methods and disposal of drill arisings and material extracted during seabed preparation for foundation and cable installation works;\n(iv) contractors;\n(v) associated ancillary works; and\n(vi) guard vessels to be employed;\n(e) an offshore environmental management plan covering the period of construction and operation to include details of—\n(i) a marine pollution contingency plan to address the risks, methods and procedures to deal with any spills and collision incidents during construction and operation of the authorised scheme in relation to all activities carried out;\n(ii) a chemical risk assessment, including information regarding how and when chemicals are to be used, stored and transported in accordance with recognised best practice guidance;\n(iii) waste management and disposal arrangements;\n(iv) the appointment and responsibilities of a fisheries liaison officer;\n(v) a fisheries liaison and coexistence plan in accordance with the outline fisheries liaison and co-existence plan, to ensure relevant fishing fleets are notified of commencement of the authorised scheme pursuant to condition 12(8) and to address the interaction of the construction of the authorised scheme with fishing activities;\n(vi) measures to minimise disturbance to marine mammals and rafting birds from transiting vessels; and\n(vii) measures to minimise the potential spread of invasive non-native species;\n(f) an offshore written scheme of investigation for archaeology and protocol for archaeological discoveries in relation to the Order limits, in accordance with the outline offshore written scheme of investigation and protocol for archaeological discoveries and industry good practice and including—\n(i) details of responsibilities of the undertaker, archaeological consultant and contractor;\n(ii) a methodology for further site investigation including any specifications for geophysical, geotechnical and diver or remotely operated vehicle investigations;\n(iii) archaeological analysis of survey data, and timetable for reporting, which is to be submitted to the licensing authority within four months of any survey being completed;\n(iv) delivery of any mitigation including, where necessary, identification and modification of archaeological exclusion zones;\n(v) monitoring of archaeological exclusion zones during and post construction where required;\n(vi) a requirement for the undertaker to ensure that a copy of any agreed archaeological report is deposited with the National Record of the Historic Environment, by submitting an OASIS (Online Access to the Index of archaeological investigations) form with a digital copy of the report within six months of completion of construction of the authorised scheme, and to notify the licensing authority that the OASIS form has been submitted to the National Record of the Historic Environment within two weeks of submission;\n(vii) a reporting and recording protocol, including reporting of any wreck or wreck material during construction, operation and maintenance of the authorised scheme; and\n(viii) a timetable for all further site investigations, which must allow sufficient opportunity to establish a full understanding of the historic environment within the offshore Order limits and the approval of any necessary mitigation required as a result of the further site investigations prior to commencement of construction of the authorised scheme;\n(g) an aids to navigation management plan specifying how the undertaker will ensure compliance with condition 14 from the commencement of construction of the authorised scheme to the completion of decommissioning of the authorised scheme;\n(h) in the event that driven or part-driven pile foundations are proposed to be used, a marine mammal mitigation protocol in accordance with the outline marine mammal mitigation protocol, the intention of which is to prevent injury to marine mammals, following current best practice as advised by the statutory nature conservation body;\n(i) a dropped objects plan;\n(j) a vessel traffic management plan in accordance with the outline vessel traffic management plan;\n(k) a vessel traffic monitoring strategy in accordance with the offshore in-principle monitoring plan; and\n(l) a compliance report in respect of the conditions to be discharged.",
  "extent": "E+W",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "I",
      "label": "I1",
      "text": "Sch. 14 para. 17 in force at 28.7.2025, see art. 1"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2025/870/schedule/14/paragraph/17",
    "retrieved_at": "2026-10-28T21:13:09.870071+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}