Arrest or seizure under legal process. A ship may be arrested for a maritime claim against it through legal action, as a guarantee for payment for damages. Before a ship can be arrested, a court must approve such action. The procedures for ship arrest vary between countries.

Antifouling composition. These coatings are for underwater use on hulls. They Contain poisons based on copper and mercury compounds. The poisons prevent the adhesion of organisms to the hull.

Antitrust laws. When the liner conference system became formalised in the 19th century, one of the main functions was that freight rates on an agreed route would be fixed between the members to the conference. 

At and from. This expression in a voyage policy implies that where a ship or cargo is insured “at and from” a particular port and she arrives in the port safely with the intention of proceeding on the insured voyage when the contract is concluded, the risk attaches immediately.

Anticorrosive paint. This is a special type of rust-preventing primer on a bituminous base. It is used as a primer for vessel’s bottom paints in dry-dock. It has two functions: to prevent corrosion and to bind old anti-fouling that has become porous because the antitoxins or poisons have escaped.

 

 

"Act of God".When some events take place preventing one party from fully carrying out his obligations under a charterparty and that event occurs without any human intervention, this person is relieved from any liability to compensate the other party to the contract. 

Affreightment. This term is a somewhat old form of describing a contract to carry goods by sea, that is a "contract of carriage". 

AH range. A range of ports between Antwerp and Hamburg in Europe. If the owner agrees with this range of ports he accepts that Antwerp and Hamburg are warranted by the Charterer as being "safe" but he may have to dispute the "safety" of any other port nominated within the range. This description of a range of ports is sometimes abbreviated to "AH.R".

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