Welsh Ministers have approved the Marine Licensing (Exempted Activities) (Wales) (Amendment) Order 2026, made on 2 February and effective from 1 April 2026. For ports, marinas, harbour authorities, aquaculture businesses and offshore contractors, it redraws which low‑risk tasks can proceed without a full marine licence and introduces tighter notification windows. The changes amend the 2011 Exempted Activities Order to reflect current practice and risk. (legislation.gov.uk)

Why it matters is straightforward: fewer routine jobs stuck in licensing queues, with safeguards where navigation, protected sites or heritage could be impacted. The Welsh Government trailed this direction in its 2024 consultation and 2025 summary of responses, aiming to align Wales with UK good practice while keeping proportionate oversight. (gov.wales)

The Order standardises several notice windows. UK Hydrographic Office must be notified at least five days before depositing scientific instruments and within five days after their removal; shellfish operations that place structures must also notify UKHO five days ahead. Removal of navigation hazards now requires UKHO notification within five days of the activity. Recreational markers that remain in place for over 24 hours need five days’ notice to the Maritime and Coastguard Agency and Trinity House, and they must be lifted within 28 days. For removing abandoned or derelict vessels, MCA must be alerted at least 24 hours in advance. (legislation.gov.uk)

Maintenance dredging for navigation gains a clear ceiling: any single dredging activity must be 500m³ or less, with a site cap of 1,500m³ in any 12‑month period where similar dredging has taken place in the last ten years. Disposal of dredged arisings is not exempt. Activities are excluded if they endanger navigation, risk significant effects on marine protected areas, or undermine Water Framework objectives. For harbour masters and marina operators, that’s a practical template for small‑scale berth, fairway and slipway upkeep. (legislation.gov.uk)

Aquaculture sees a firmer line. Shellfish propagation and cultivation exemptions now cover deposits, removals and dredging associated with existing sites, but expansion beyond current boundaries is not exempt. Activities likely to have significant effects on marine protected areas are carved out, and UKHO must be notified five days before any deposit that involves structures or markers. Operators should map coordinates to WGS84 to avoid survey disputes. (legislation.gov.uk)

For pontoons within harbour or port limits, new light‑touch rules apply when acting with a harbour authority’s consent: no more than ten pontoons per site over six months, no decks above 30m², and units must be free of invasive non‑native species. Permanent structures, dwellings on pontoons and piling works still fall outside the exemption. This is designed for seasonal marina capacity and quick replacements rather than new build. (legislation.gov.uk)

Dry dock activity inside regulated harbours is brought into scope for exemption where authorities give five days’ notice to the MCA and Trinity House and clear debris before vessel movements. As with other exemptions, anything that endangers navigation, risks significant effects on protected sites, or damages heritage features remains licensable. (legislation.gov.uk)

Sampling and site investigations gain clarity. General seabed grab samples are exempt up to 1m³ per plan or project, while trial pits, borehole cuttings and vibrocore programmes are exempt up to 5m³, with plain limits on navigation safety and heritage protection. For contractors planning geotechnical campaigns ahead of cable routes or pontoon repairs, that means shorter lead times and fewer single‑purpose licences. (legislation.gov.uk)

Restoration and clean‑up get support. Seagrass bed establishment and restoration are exempt where native stock is free of invasive species and translocations follow IUCN guidelines; activities must not affect MoD strategic interests or protected sites, nor use non‑biodegradable materials. Divers and shore teams can remove marine litter and lost fishing gear under exemption, with heritage safeguards. (legislation.gov.uk)

Day‑to‑day shoreline management is easier to schedule. Vehicles and vessels can remove beach litter, debris and dead animals; wind‑blown sand can be cleared from promenades, roads and slipways and returned to the beach within seven days, provided it’s free of contaminants. Local authorities and harbour authorities are the main users here, but environmental charities can act within conditions. (legislation.gov.uk)

Where wrecks or objects are of archaeological or historical interest, the salvage exemption no longer applies-those removals will still need a licence. Conversely, accidental deposits on the seabed can be lifted without a licence if done within twelve months and within safety and environmental limits. This draws a line between routine housekeeping and activities with cultural or ecological sensitivity. (legislation.gov.uk)

Emergency cable and pipeline work stays exempt, but operators must now update UKHO charts within five days after repairs where positions change. For the bored tunnel exemption, Wales keeps a route for wholly sub‑seabed works but tightens conditions so projects must not affect the environment, navigation or heritage, and they cannot be used to dispose of material. (legislation.gov.uk)

Upgrades to existing coast protection, drainage and flood defences can proceed under exemption where works stay within current boundaries and UKHO gets five days’ notice; anything extending below mean low water spring is out. For routine minor works on bridges, cantilevered structures, jetties and piers, the exemption covers maintenance only-not new access structures, dredging or anything that reduces air clearance for vessels. (legislation.gov.uk)

Every exemption is ring‑fenced by familiar tests: no obstruction or danger to navigation, no significant effects on marine protected areas, and explicit safeguards for scheduled monuments and wreck controls. In practice, if a job risks tripping an Environmental Impact Assessment or Habitats Regulations Assessment, it likely sits outside the exemption and needs a licence from Natural Resources Wales acting for Ministers. (legislation.gov.uk)

What to do now is practical. Harbourmasters, marina managers and aquaculture leads should map planned spring works against the new thresholds, add UKHO/MCA/Trinity House notices to project timelines, confirm MPA screening, and document volumes and timings to evidence compliance. The government’s consultation record suggests these changes should reduce admin for low‑risk tasks, while focusing regulatory effort on higher‑risk projects. (gov.wales)

Context matters for budgets too. Respondents to the Welsh Government’s consultation reported that exemptions for recreational boating and routine maintenance would deliver meaningful-if hard to quantify-time and cost savings, provided guidance is clear and consistent across UK waters. The Order is the first step; the discipline now is in planning and record‑keeping. (gov.wales)