INDEPENDENT WATER CONSULTANCY · MARINE WATER MANAGEMENT · CREW EDUCATION
VORENICO / FLAG STATE WATER COMPLIANCE

Luxembourg · Potable Water & Yachts

Luxembourg MLC drinking-water rights, master inspection at intervals not exceeding seven days and 2025 DMLC evidence requirements.

HOW THE MEMBER REGISTER WORKS

Four steps to a review-ready vessel dossier

Choose only your vessel's registered flag. The crew records what can be demonstrated; Vorenico assesses the relevant evidence and identifies outstanding actions.

  1. 01
    Describe the vessel

    Vessel name, commercial or private status, length, GT, year and applicable certificate/code.

  2. 02
    Choose a status

    Evidence supplied, action needed, not checked yet, or not applicable with a clear reason.

  3. 03
    Reference proof

    Enter a logbook page, inspection date, laboratory report ID, maintenance record or corrective action. This field is text only; documents are shared separately.

  4. 04
    Save and export

    Save your draft, export the CSV and share that register and source documents with Vorenico for review.

Example: Weekly water inspection → Evidence supplied → “Inspection 26 Oct 2026; deck logbook p.84; responsible engineer: Chief Engineer”.

OFFICIAL SOURCES · REVIEWED 28 OCTOBER 2026

Luxembourg Maritime Administration (CAM) water compliance

Luxembourg’s official DMLC Part I (Version 10, July 2025) expressly calls for inspection of drinking-water supplies and handling/storage at intervals no longer than seven days, carried out under the master’s authority together with a catering seafarer. Results must be recorded and available for review. Separate technical regulations for commercial craft under 24 metres have a narrower scope and an older publication date; never apply them automatically to larger superyachts.

Not a certificate

This evidence register is a member self-assessment tool; a recorded Vorenico technical review is not a statutory flag-state clearance.

Classification matters

Duty: binding if relevant regulation applies. Conditional: only under stated code and circumstances. Best practice: prudent engineering control, not an independent statutory limit. Review: confirm with the administration or applicable code before claiming compliance.

02 / Source-indexed evidence register

18 controls. A member-uploaded status is not verified, and N/A needs a reason.

LU01

Verify Luxembourg registry and MLC scope

Applicability

Review

Determine flag, ship type, private/commercial use, GT, persons, MLC applicability and DMLC status.

When in scope: Registered yacht or ship and actual MLC category

Evidence requested: Registration, charter documents, crew contracts and exemptions

LXPORT · CAM MLC overview ↗

LU02

Obtain applicable 2025 DMLC and vessel Part II

Documentation

Review

Use current DMLC Part I and vessel Part II; record any acknowledged exemptions or substantial equivalences.

When in scope: MLC certified ships

Evidence requested: Current DMLC I/II, ship certificate, approvals

LXDMLC · DMLC Part I 2025, Part II vessel-specific ↗

LU03

Provide suitable and sufficient drinking water

Water supply

Duty

Ensure adequate drinking-water quantity and quality suited to seafarers, duration and voyage.

When in scope: Ships within national MLC / Luxembourg Maritime Act

Evidence requested: Crew water access, lab report, quantity estimate

LXACT · Art. 3.2.4-8 ↗

LU04

Verify free crew access to provisions

Crew welfare

Review

Confirm crew can access required drinking water, without fees inconsistent with applicable MLC obligations.

When in scope: MLC seafarers and applicable crew welfare terms

Evidence requested: Crew welfare policy and accommodation inspection

LXDMLC · Regulation 3.2 food and catering ↗

LU05

Carry out water inspections at most every 7 days

Inspections

Duty

Master or person under authority must inspect drink water supplies, storage and handling at intervals not exceeding SEVEN DAYS.

When in scope: Ships within art.3.2.4-15

Evidence requested: Dated inspection log and schedule

LXDMLC · Art.3.2.4-15 / Standard A3.2.7 ↗

LU06

Include catering seafarer in inspections

Inspections

Duty

Inspection is performed together with a seafarer employed in catering; record the individuals participating.

When in scope: Where art.3.2.4-15 applies

Evidence requested: Crew role/names on inspection form

LXDMLC · Regulation 3.2, 2025 DMLC p.10 ↗

LU07

Inspect all supply, storage and handling assets

Inspections

Duty

Inspect drinking water quantity/quality and the relevant storage/handling spaces and equipment.

When in scope: Within art.3.2.4-15 scope

Evidence requested: Tank/pump/galley inspection checklist

LXDMLC · Art.3.2.4-15 sub-points ↗

LU08

Retain inspection results for inspection

Records

Duty

Document results and make them available for review. Confirm onboard retention policy; 2025 DMLC does not specify a universal 3-year water-inspection period.

When in scope: Where art.3.2.4-15 applies

Evidence requested: Logs, traceability and access to inspection records

LXDMLC · Art.3.2.4-15 ↗

LU09

Resolve and document unsuitable water

Corrective action

Best practice

Set stop-use, isolation, corrective action and independent approval for return to service.

When in scope: When inspections identify potential contamination

Evidence requested: Incident reports, authority approval, retest

LXACT · Arts.3.2.4-8, 3.2.4-15 ↗

LU10

Assess under-24m technical scope separately

Small craft

Conditional

Older technical rules call for adequate drinking water for voyage/persons in suitable containers; validate current status and applicability with CAM.

When in scope: Commercial cruise ships under 24m if that special regime applies

Evidence requested: Size, category, voyage class and CAM confirmation

LXSMALL · Chapter 5 art.5-04 (older publication) ↗

LU11

Check potable container materials

Materials

Conditional

Water containers should be made of materials suitable for goods for human consumption if that rule governs the ship.

When in scope: Where specific under-24m technical regime confirmed

Evidence requested: Tank material certificates and CAM confirmation

LXSMALL · Art.5-04 ↗

LU12

Review bunkering controls and hose protection

Bunkering

Best practice

Assess supplier source, backflow, protected hoses and transfer acceptance; no universal free-chlorine minimum is asserted.

When in scope: When shore water is bunkered

Evidence requested: Bunkering log and hose inspection

LXACT · Art.3.2.4-8 supply safety objective ↗

LU13

Review RO and disinfection protection

Treatment

Best practice

Check controls for abnormal conductivity, treatment bypass and failed disinfection; this is engineering good practice, not a published Luxembourg universal UV rule.

When in scope: When water is produced/treated onboard

Evidence requested: Plant schematic, alarms, maintenance and procedure

LXACT · Art.3.2.4-8 quality obligation ↗

LU14

Monitor water quality by vessel risk

Sampling

Best practice

Set sampling locations, frequency and response based on hazards and any certificate-specific instruction.

When in scope: When the WSP calls for sampling

Evidence requested: Sampling log, laboratory results and limits

LXACT · Art.3.2.4-8 ↗

LU15

Verify any yacht-class rules and exemptions

Applicability

Review

Confirm the precise applicable code, exemptions, approved equivalences and RO/flag written instructions.

When in scope: Large yachts, non-standard ship operations, equivalences

Evidence requested: Flag correspondence, DMLC, survey records

LXPORT · CAM MLC and DMLC procedures ↗

LU16

Review potable-water procedures with staff

Training

Best practice

Train responsible crew on inspections, water transfer, incident isolation, recording and handover.

When in scope: All water-handling personnel

Evidence requested: Training register and controlled SOP

LXDMLC · Regulation 3.2 general hygiene and training ↗

LU17

Record owners, actions and review due dates

Water Safety Plan

Best practice

Allocate responsible persons for unresolved water risks and schedule follow-up verification.

When in scope: Water Safety Plan and member evidence register

Evidence requested: Action tracker, WSP risk register and approvals

LXACT · Arts.3.2.4-8, 3.2.4-15 ↗

LU18

Request Vorenico review of Luxembourg evidence

Review

Best practice

Submit current evidence and applicability decisions; Vorenico technical review is not a statutory certificate.

When in scope: After member self-assessment

Evidence requested: Register export and record of source validation

LXPORT · Current CAM guidance and vessel-specific DMLC ↗

Editorial review: 28 October 2026. Flag State requirements are specific to the vessel, operating status, certificate, build date and accepted alternatives. Re-check the published code and flag/RO correspondence before claiming statutory compliance.
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