Anyone who spends time around dry bulk chartering will quickly run into a handful of recurring names: GENCON, NYPE, and the riders that seem to accompany almost every fixture. These are not obscure technicalities. They are the standard forms that the market has settled on over many decades to record what a shipowner and a charterer have agreed, in language both sides broadly recognise. Understanding what these forms are, how voyage and time charter versions differ, and why parties routinely amend them with riders, makes it easier to follow a fixture negotiation and to see why a broker's drafting work matters as much as the freight discussion itself.
What a Charter Party Form Is For
A charter party is the contract between the owner of a vessel and the charterer who wishes to use it, setting out matters such as the cargo, the ports, the freight or hire arrangement, and the obligations each side carries. Rather than drafting a fresh contract from a blank page for every fixture, the market works from standard printed forms that have been developed and refined over many years by industry bodies and trade associations.
Using a recognised standard form has practical benefits. Both sides, and their brokers, are broadly familiar with the structure and the typical clauses, which speeds up negotiation. Disputes and arbitration decisions over the years have also built up a body of interpretation around the wording of these forms, which gives the parties a reasonable sense of how particular clauses tend to be read. None of this removes the need to read the actual document carefully; it simply means the starting point is not invented from scratch each time.
Voyage Charters and the GENCON Form
A voyage charter covers the carriage of a specific cargo, or a defined number of cargoes, between named or nominated ports, for a freight typically expressed per tonne or as a lump sum. GENCON is probably the best known general-purpose voyage charter form in dry bulk and is used across a wide range of trades and commodities, precisely because it was designed to be adaptable rather than tied to one cargo type.
The GENCON form sets out the basic mechanics of a voyage fixture: the parties, the vessel description, the loading and discharging ports, the cargo, the freight terms, and the framework for laytime and demurrage, among other matters. Because it is meant to be a general template, it leaves considerable room for the specifics of a given trade or cargo to be added separately, which is one of the main reasons additional clauses are so often attached.
For a broader comparison of how voyage charters differ from time charters in practice, see our earlier piece on Voyage Charter vs Time Charter in Dry Bulk.
Time Charters and the NYPE Form
A time charter works differently. Instead of hiring the vessel for a single voyage or cargo, the charterer takes the vessel for an agreed period, paying hire calculated over time rather than freight per cargo, while the vessel remains under the owner's technical management and crewing. The charterer directs the vessel's employment within the agreed trading limits, but the owner continues to run the ship itself.
NYPE, the New York Produce Exchange form, is the form most commonly associated with dry bulk time charters. Like GENCON on the voyage side, it provides the recognised skeleton for a time charter fixture: vessel description and performance warranties, the period and trading limits, hire and payment terms, off-hire provisions, and the general division of responsibilities between owner and charterer. Its long history in the market means most participants have a shared sense of how its main provisions are meant to operate, even before any additional wording is added.
Why Riders Exist
A standard form, whether GENCON, NYPE, or one of the other recognised forms used in the market, is deliberately general. It has to work across many trades, cargoes, vessel types, and counterparties, which means it cannot anticipate every detail relevant to a particular fixture. This is where riders come in: additional typed clauses attached to the printed form that adapt it to the specifics of the deal at hand.
Riders might address the particular cargo and its handling requirements, port or berth peculiarities, additional certification the vessel needs to carry, or commercial points the parties negotiated that the printed form does not cover at all. They can also record how the parties want a particular general provision in the printed form to apply in their specific case. The result is a document that keeps the shared, well-understood backbone of the standard form while reflecting what has actually been agreed for that fixture.
This is also why careful drafting matters. Riders that are inconsistent with the printed form, or with each other, are a common source of later disagreement. Getting the interaction between the standard clauses and the rider clauses right at the fixing stage is one of the more valuable, if less visible, parts of a broker's work.
Working with Standard Forms in Practice
Owners, charterers, and their brokers do not usually choose a form from scratch for each negotiation. The trade, the cargo, and sometimes long-standing counterparty habits tend to point toward a particular form and a familiar set of rider clauses, which are then adjusted for the fixture in hand. A broker who works a given trade regularly will know which forms and rider wording are customary, and where a counterparty is likely to want something added or amended.
None of this replaces proper legal review of the final document, and commercial practice varies, so it is always worth checking the actual charterparty terms rather than assuming how a clause will be read. What a good grasp of the standard forms does provide is a faster, more informed negotiation, because both sides are working from a shared reference point rather than negotiating every provision from first principles. For a step-by-step look at how a fixture comes together in practice, see How a Dry Bulk Fixture Works, Step by Step.
At ER Drybulk, our chartering desks work with these standard forms and their riders daily, across voyage and time charter business alike, and we are glad to talk through how a particular form or clause structure tends to apply in a given trade. Reach out to discuss a fixture, and we will bring that experience to the drafting table alongside the commercial terms.