Maritime Regulatory Diff: HNS Convention Entry into Force and German Green Inland Funding, Week of 17 August 2026

Standfirst

The single most consequential regulatory change this week is the confirmed entry into force of the International Convention on Liability and Compensation for Damage in Connection with the Carriage of Hazardous and Noxious Substances by Sea on 29 November 2027. This binds owners, managers and charterers of vessels carrying HNS cargoes worldwide once the threshold of ratifications is met. A second concrete development opens a €70 million German funding window for zero- and low-emission inland vessels from 17 August 2026.

HNS Convention Enters into Force 29 November 2027

Before 29 November 2027 the carriage of hazardous and noxious substances by sea operated without an international liability and compensation regime comparable to the CLC and Fund Conventions for oil. Shipowners faced fragmented national laws, uncertain recourse for claimants and no uniform mechanism for rapid compensation after incidents involving chemicals, liquefied gases or other covered substances. BIMCO has long tracked the slow accumulation of ratifications required to trigger the convention.

From 29 November 2027 the HNS Convention will impose strict liability on the shipowner for damage caused by HNS cargoes, backed by compulsory insurance and a supplementary fund financed by cargo receivers. The convention covers loss of life, personal injury, property damage and economic loss, with higher limits than most existing national regimes. BIMCO notes that owners must obtain HNS certificates from flag states and that receivers in contracting states will face levies to capitalise the HNS Fund.

Owners, bareboat charterers, managers and individual vessels carrying HNS will have to verify that insurance policies expressly cover HNS liabilities and that certificates are carried on board. Manning agencies and crewing managers must ensure masters and officers understand the new documentation requirements during port state inspections. The exact circular numbers and model certificates have not yet been published by the IMO, but BIMCO has begun issuing guidance notes to members on the practical steps required in the 15 months before entry into force.

German Federal Ministry of Transport Opens €70 Million Green Inland Navigation Grants from 17 August 2026

Prior to 17 August 2026, German inland shipping operators seeking support for zero- or low-emission technologies had no dedicated national grant scheme of this scale. Funding was limited to smaller pilot projects or EU-level programmes with longer application cycles.

From 17 August 2026, Germany's Federal Ministry of Transport (BMV) will accept applications under the “Directive on Grants for Green Inland Navigation”. The €70 million (approximately $81 million) envelope targets German-based companies, municipalities and other interested parties that invest in electric, hydrogen or low-emission propulsion for inland vessels. Eligible measures include newbuilds, retrofits and shore-side infrastructure.

Inland vessel owners and operators must submit technical specifications, emissions calculations and cost estimates through the ministry's portal starting 17 August. Managers of mixed fleets that include Rhine or Danube tonnage will need to segregate eligible German-flagged or German-operated units. The scheme does not bind seafarers directly but will influence manning patterns on vessels that receive grants, as new technologies often require updated training records.

What Did Not Change But Was Widely Reported As Changing

No draft circulars or advisories concerning Philippine DMW or MARINA licensing, DMW-SEC amendments or MLC 2006 enforcement actions appeared in final form during the week. Reports of possible new cabotage or transshipment rules in Malaysia remained at the level of expert commentary without published implementing regulations or effective dates.

Compliance-Deadline Table (Next 90 Days)

Instrument	What is required	Deadline	Who it binds
German Directive on Grants for Green Inland Navigation	Submit application with technical and financial documentation for zero- or low-emission inland projects	Applications open 17 August 2026; first tranche decisions expected within 60 days	German companies, municipalities and operators of inland vessels
HNS Convention preparatory actions	Verify insurance wording and prepare for flag-state HNS certificate applications	Ongoing until 29 November 2027	Shipowners, managers and charterers of HNS-carrying vessels

Pipeline Developments Expected Next

The IMO has scheduled further work on HNS certificate formats and the first meeting of the HNS Fund Assembly after entry into force. No additional IMO instruments or EU port-state measures with entry-into-force dates inside the next 30 days have been confirmed in official records. National schemes such as the German grants programme may issue supplementary guidance notes on eligible technologies within the coming weeks.

The HNS Convention's long ratification path demonstrates how slowly global liability regimes mature; the German funding window shows how quickly national incentives can be deployed when political priority aligns with budget availability. Operators should treat the 29 November 2027 date as fixed and begin mapping their HNS exposure now rather than waiting for model certificates. The absence of Philippine or EU regulatory movement this week does not reduce the need to monitor DMW and Paris MoU concentrated inspection campaigns, which frequently produce binding circulars without long notice periods.