Yacht and Boat Chartering Industry Terminology
Addendum (Charter Agreement Addendum)
A supplementary document that modifies or adds specific terms to a signed charter agreement (e.g., changes to itinerary, cancellation terms, or special permissions).
“We’ll add the drone policy via an addendum.”; “Weather contingency terms were clarified in an addendum.”; “The owner signed an addendum approving a pet onboard.”
AIS (Automatic Identification System)
A transponder-based system broadcasting a vessel’s identity, position, course, and speed to improve navigational safety and tracking.
“Track the yacht’s AIS on MarineTraffic.”; “We’ll switch AIS to privacy mode near the owner’s villa.”; “The captain monitors nearby traffic via AIS when entering the marina.”
All-Inclusive Charter
A pricing model (common in the Caribbean) where the rate includes crew, standard food and beverages, and reasonable fuel use. Some items (premium alcohol, dockage, taxes, special requests) may be excluded.
“That Caribbean catamaran runs all-inclusive with a standard bar.”; “Premium wines are extra on an all-inclusive.”; “Dockage and taxes may still be excluded on some all-inclusives.”
APA (Advance Provisioning Allowance)
A pre-paid expense fund (typically 20–35% of base rate) used to cover variable charter costs; fully accounted with receipts and reconciled at the end.
“Expect an APA of 25–35% in the Med.”; “Unused APA is returned with receipts post-charter.”; “APA covers fuel, dockage, food, drinks, and incidental expenses.”
Bareboat Charter
A rental of the vessel without crew. The charterer assumes responsibility for navigation, operations, and compliance; often requires certifications and a security deposit.
“You’ll need a valid skipper’s license for a bareboat in Croatia.”; “A refundable damage deposit applies on bareboats.”; “Add a skipper to convert this to a skippered charter.”
Base Rate
The published charter price before taxes, APA, gratuity, delivery fees, and other extras; typically quoted per week.
“The base rate excludes VAT and APA.”; “High-season base rate is higher than low-season.”; “The quote is at the base rate plus expenses.”
Berth (Slip)
A designated mooring place for a vessel in a marina. In charter, berth availability and costs can affect itinerary and budget.
“The home berth is in Porto Cervo.”; “We reserved a berth for the Monaco GP weekend.”; “Berth fees are charged to the APA.”
Central Agency (CA)
The exclusive listing agent appointed by the owner to market the yacht, manage the booking calendar, handle offers, and coordinate with other brokers.
“This yacht is under CA with MYBA terms.”; “Contact the CA for the latest calendar and net rate.”; “The CA controls marketing and option holds.”
Charter Agreement (MYBA/AYCA)
The legally binding contract that defines the charter’s terms, including dates, payments, liabilities, cancellations, and conduct. MYBA and AYCA are widely used standards.
“We’re issuing a MYBA e-contract.”; “The charter agreement outlines cancellation and force majeure.”; “An addendum will detail the drone usage policy.”
Charter Broker
A specialist intermediary who advises clients, proposes yachts, negotiates terms, and manages the booking process and documentation.
“Your retail broker will manage your preferences and offers.”; “The broker liaises with the CA to secure an option.”; “A good broker vets crew and safety standards.”
Commission (Brokerage)
The brokerage fee paid from the gross charter rate, commonly split between the central agent and the retail broker; typically 15–20% depending on market and agreement.
“Commission is commonly 15–20% of the base rate.”; “The CA and retail broker split the commission.”; “Owner’s net is base rate minus commission.”
Damage Waiver (CDW/YDW)
An optional fee (common on bareboats) that reduces or caps the charterer’s financial liability for accidental damage, often in lieu of a higher deposit.
“Add the CDW to reduce your bareboat liability.”; “Without a waiver, a higher security deposit is required.”; “The waiver excludes negligence and gross damage.”
Day Charter
A charter of less than 24 hours, often for events or short excursions; may have different passenger limits, pricing, and tax treatment than weekly charters.
“The yacht is coded for 12 guests for day charters.”; “Event charters are priced per day with security staff.”; “Different VAT rules may apply on day charters.”
Draft (Draught)
The vertical distance from waterline to the bottom of the keel; determines access to shallow areas, channels, and certain marinas.
“With a 2.4 m draft we can’t enter that shallow bay.”; “Choose a shallow-draft catamaran for the Bahamas.”; “Draft affects berth assignment and anchorages.”
Eco-Friendly Charter
A charter approach that reduces environmental impact through practices like plastic reduction, waste sorting, efficient routing, carbon offsetting, and eco-tech onboard.
“This yacht runs hybrid propulsion and uses eco-toiletries.”; “Plastic-free charter with glass bottles only.”; “We’ll offset fuel burn via carbon credits.”
Embarkation/Disembarkation
The scheduled start (boarding) and end (leaving) of the charter, including times, port locations, and handover procedures.
“Embarkation 12:00 Sat; disembarkation 12:00 next Sat.”; “Early embarkation is subject to the crew’s turnaround.”; “Disembarkation formalities include APA reconciliation.”
Extras (Plus Expenses)
Items not included in the base rate (e.g., fuel, food, beverages, dockage, permits, taxes). On plus-expenses charters they’re covered via the APA.
“This yacht is plus expenses—budget APA for fuel and F&B.”; “Dockage and taxes are extras.”; “Watertoy rentals are billed as extras.”
Force Majeure
A contract clause addressing unforeseeable events beyond the parties’ control (e.g., severe weather, acts of government) that may excuse performance or alter obligations.
“Storm closures triggered force majeure.”; “Government restrictions invoked the force majeure clause.”; “We added a pandemic carve-out to force majeure.”
Generator (Genset)
An onboard power unit producing AC electricity for systems like air-conditioning, galley equipment, stabilizers, and battery charging.
“The yacht has two silent gensets for overnight AC.”; “Generator hours will be charged to APA.”; “A large genset supports the jacuzzi and stabilizers.”
Gratuity (Tip)
A discretionary payment to the crew for service quality; regional customs vary (often 10–20% of the base rate).
“Customary crew gratuity runs about 10–20% of base rate.”; “Tips are given to the captain for distribution.”; “Gratuity is discretionary but appreciated for good service.”
High-Season Rate
Peak-period pricing reflecting highest demand; dates vary by region (e.g., summer in the Mediterranean, holidays in the Caribbean).
“July–August are high season in the Med.”; “Holiday weeks price at high-season rates.”; “Availability is tight at high-season pricing.”
Hull and Machinery (H&M) Insurance
Insurance that covers physical loss or damage to the vessel’s hull, engines, and equipment, distinct from liability coverage (P&I).
“H&M covers storm damage to the yacht itself.”; “H&M is separate from P&I liability cover.”; “Refit value must be updated for H&M.”
Initial Deposit (Booking Deposit)
The first payment (commonly 50% of the base rate) due upon signing the charter agreement; balance due before embarkation per contract terms.
“50% due on signature, balance 30 days prior.”; “Events may use a 30/70 schedule.”; “Funds are held in a stakeholder account per contract.”
Itinerary
The planned route and schedule for the charter, subject to weather, port availability, and safety considerations.
“Draft itinerary is weather-permitting.”; “Custom itinerary tailored to quiet anchorages.”; “Port bookings shape the itinerary during peak weeks.”
Jet Ski (PWC)
A personal watercraft often carried as a watertoy; operation may require licenses and adherence to local regulations and safety rules.
“Guests need a PWC license in this country.”; “Use is limited to daylight and calm conditions.”; “Jetski fuel is billed to the APA.”
Knot
A unit of speed equal to one nautical mile per hour; used for vessel speed and current.
“Cruising speed is 12 knots.”; “Plan 18 knots to make the next anchorage.”; “Fuel burn rises sharply above 15 knots.”
LOA (Length Overall)
The maximum length of the vessel from the foremost to aftmost point; affects berth availability, fees, and regulatory thresholds.
“Berth fees are quoted by LOA.”; “The LOA includes the swim platform.”; “Port limits restrict LOA above 50 m.”
Low-Season Rate
Discounted pricing for off-peak periods with lower demand; dates vary by region.
“May and October are low season in many Med areas.”; “Expect better availability at low-season rates.”; “Some yachts offer short-term low-season pricing.”
MYBA (Mediterranean Yacht Brokers Association)
A leading yachting association that publishes standard charter contracts, best practices, and codes of conduct used globally.
“Booking is on MYBA terms.”; “We’ll issue a MYBA eContract.”; “MYBA guidelines inform crew gratuity norms.”
Nautical Mile (NM)
A unit of distance used at sea, equal to 1,852 meters or about 1.1508 statute miles; aligns with one minute of latitude.
“The next island is 24 NM away.”; “Fuel plan is based on NM and speed.”; “We log distance in nautical miles.”
One-Way Charter
A charter that begins and ends in different ports; may involve delivery/repositioning fees and schedule constraints.
“Athens to Mykonos incurs a delivery fee.”; “One-way charters are subject to owner approval.”; “The crew needs repositioning time after a one-way.”
P&I (Protection & Indemnity) Insurance
Liability insurance covering third-party risks such as injury to guests or crew, pollution, and damage to other property.
“P&I covers third-party liabilities.”; “Claims for guest injury fall under P&I.”; “P&I limits depend on vessel coding and trade.”
PAX (Passengers)
Industry shorthand for number of guests; most commercial yachts are limited to 12 guests overnight unless certified under specific passenger-yacht codes.
“The yacht is commercially coded for 12 PAX overnight.”; “Day charter PAX limits differ from overnight.”; “PAX count drives provisioning and cabin setup.”
Preference Sheet
A pre-charter questionnaire capturing guest dietary needs, medical considerations, cabin allocations, activities, and service preferences to guide provisioning and planning.
“Please return your preference sheet 30 days prior.”; “We noted vegan menus and no shellfish.”; “Toy preferences and wine list go on the sheet.”
Provisioning
The process of sourcing and loading food, beverages, toiletries, flowers, and other consumables based on the preference sheet and itinerary.
“Provisioning is funded via the APA.”; “Last-mile provisioning happens on turnaround day.”; “Specialty wines require pre-approval and lead time.”
Rate Card
The yacht’s official price list outlining base rates by season, minimum durations, special event pricing, and standard terms.
“See the 2025 rate card for high/low season.”; “Event and day rates are listed on the card.”; “Minimum days and holiday surcharges are on the rate card.”
Refit
Significant maintenance and upgrades to a yacht’s structure, systems, or interiors; often highlighted in marketing to signal condition.
“Full refit in 2023 with new interiors.”; “Mechanical refit addressed generators and stabilizers.”; “Post-refit photos are on the listing.”
RIB (Rigid Inflatable Boat)
A lightweight, stable tender with a rigid hull and inflatable tubes; used for shore transfers, watersports, and safety.
“The 6.5 m RIB is the primary tender.”; “RIBs are ideal for beach landings.”; “We’ll tow toys using the RIB.”
Security Deposit
Funds held against loss or damage, most common on bareboat charters; terms and amounts vary by operator and destination.
“Bareboats require a refundable deposit.”; “The deposit is a credit card hold at check-in.”; “Deductions cover damage not included in the waiver.”
Skippered (Captain-Only) Charter
A charter that includes a professional captain but not a full crew; guests or added staff handle cooking and housekeeping.
“A captain is provided; guests handle meals.”; “Add a hostess/chef to upgrade the experience.”; “Skipper fee and provisioning are extra.”
Stabilizers (Fin/Gyro)
Systems that reduce vessel rolling, using fins or gyroscopes to improve comfort underway and, with certain systems, at anchor.
“Zero-speed stabilizers reduce roll at anchor.”; “Fin stabilizers work best underway.”; “Guests prone to seasickness prefer gyro-stabilized yachts.”
Superyacht
A large luxury yacht, typically over 24 meters, with professional crew, high-end amenities, and bespoke service.
“She’s a 55 m superyacht with 12 guests and 12 crew.”; “Superyacht charters often require MYBA terms.”; “Helipads are common on larger superyachts.”
Tender
A smaller boat carried by the yacht for guest transfers, exploration, watersports, and safety support.
“The tender will shuttle you to shore.”; “We’ll use the tender for snorkeling trips.”; “Tender ops depend on sea state for safety.”
Toys (Watertoys)
Onboard recreational equipment such as jet skis, Seabobs, kayaks, paddleboards, wakeboards, and inflatables.
“Seabobs and SUPs are included.”; “Jetskis may require a license.”; “Towables are launched by the RIB.”
Turnaround Day
The time allocated between charters for cleaning, maintenance, provisioning, and crew rest; often defines embark/disembark windows.
“Saturday-to-Saturday with a noon turnaround.”; “Short turnarounds may limit long passages.”; “Crew rest and deep clean occur on turnaround.”
VAT/TVA/IVA
Value-added tax applied to charters in many jurisdictions (terminology varies by country); rates, exemptions, and rules differ by location.
“EU charters are subject to local VAT.”; “Rates vary by country and charter type.”; “Tax is added on top of the base rate.”
VHF Radio
A short-range marine radio used for ship-to-ship and ship-to-shore communication, safety, and port operations.
“Standby on VHF channel 16.”; “We’ll confirm the berth with the marina on VHF.”; “DSC alerts are monitored by the captain.”
Watermaker
A desalination system that converts seawater to fresh water for onboard use, reducing the need for frequent dockside refills.
“The watermaker produces 180 L/h.”; “Run time is charged to generator hours.”; “Watermaker reduces reliance on marina water.”
Yacht Management
Professional administration of a yacht’s operations, including compliance, maintenance, crewing, accounting, and charter marketing.
“The management company handles compliance and crew payroll.”; “Charter management is included in the service.”; “They coordinate maintenance and refits.”
Zero-Speed Stabilizers
Stabilizer technology designed to reduce roll while the yacht is at anchor or moving slowly, enhancing comfort in all conditions.
“Zero-speed is essential for calm nights at anchor.”; “These stabilizers reduce roll even when the yacht is stationary.”; “Families prioritize yachts with zero-speed systems.”
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