Answer
1. Core Philosophical Difference
Basel Convention (1992): Views a ship at the end of its life as "Hazardous Waste." It is a general environmental treaty designed to stop developed nations from dumping toxic waste in developing nations. Parties to this convention are mostly EU countries.
Hong Kong Convention (2025): Views the ship as a "Maritime Vessel" throughout its life. It is a shipping-specific treaty that regulates the design, construction, operation, and preparation of ships to facilitate safe recycling.
2. Key Comparison Table
| Feature | Basel Convention (BC) | Hong Kong Convention (HKC) |
|---|---|---|
| Primary Regulator | UN Environment Programme (UNEP) | International Maritime Organization (IMO) |
| Focus | Transboundary movement of waste | Safe & environmentally sound ship recycling |
| Applicability | Starts when the ship is "intended to be disposed of" (waste). | "Cradle-to-Grave" (Design → Ops → Recycling). |
| Control Mechanism | PIC (Prior Informed Consent): State-to-state notification/approval. | IHM & Certificates: Survey-based (Ready for Recycling Certificate). |
| Key Document | Movement Document / Waste Manifest | IHM (Inventory of Hazardous Materials) |
| Jurisdiction | Exporting State vs. Importing State | Flag State vs. Recycling State |
3. Major Practical Differences (Exam Points)
The "Exporting State" Conflict
Under Basel, the "Exporting State" (where the ship is located when decided for scrap) must get consent from the "Importing State" (where the yard is). This is often difficult for ships on international voyages.
Under HKC, the responsibility lies with the Flag State to ensure the ship has a valid IHM and is sent only to an Authorized Ship Recycling Facility (ASRF).
The "Ban Amendment"
Basel has a "Ban Amendment" that prohibits the export of hazardous waste from OECD/EU countries to non-OECD countries (like India, Bangladesh, Pakistan).
HKC does not have this ban; it allows recycling in any country as long as the facility is "Authorized" and meets IMO standards.
Downstream Waste Management
Basel is very strict about what happens to the waste after it leaves the yard (Environmentally Sound Management).
HKC focuses heavily on the safety inside the yard and the "Ready for Recycling" condition of the ship.
4. Why the "Interplay" Matters in 2026
Since the HKC is now in force, the IMO has issued provisional guidance to prevent shipowners from being "double-penalized."
Follow the HKC (IHM maintenance and PSC compliance), but be aware that if a ship is sold for scrap from an EU/OECD port, the Basel/Waste Shipment Regulations may still trigger a "Prior Informed Consent" requirement.