An Admeasurer must visit all vessels prior to their first Panama Canal transit to perform a Transit Vessel Inspection (TVI)

An Admeasurer will board your yacht with a pile of paperwork, a tape measure, and lots of questions. You will end up with a Ship Identification Number (SIN) and a form you need to take to the bank for payment.

  • An Admeasurement Clearance and Handline Inspection form is issued which is valid for 60 days
  • There is no separate fee for the form
  • The form must be reissued for each transit
  • Vessels must be remeasured after structural changes are made
  • Balboa Admeasurement Office: (507) 272‐4571
  • Cristobal Admeasurement Office: (507) 443‐2298
  • Waiting time is normally 2-3 days after arrival in Panama
  • Inspections are completed between 07:00-14:00 local time Monday-Friday
  • There is a fee for inspections outside normal working hours (at least US$170)

Usual places for the inspection are:

  • Pacific side: Flamenco Marina or between buoys 2 and 4, La Playita.
  • Atlantic Side: Shelter Bay or Flats (they have been known to go to Portobelo)

The inspection takes about an hour, although has been known to take ten minutes! Apart from measuring the yacht length, including protruding anchors and dinghy davits, the Admeasurer might (or might not) ask to see:

  • The mooring lines if they are available (they don’t have to be)
  • Toilet facilities and holding tank
  • A working horn
  • Bottled water

The Admeasurer might also ask about:

  • Manoeuvring speed and ability (eg. catamaran with two engines)
  • Diesel consumption at preferred motoring speed
  • Arrival and departure dates at previous ports
  • What type of lockage you prefer (or refuse) – refer to Lockage Types

The Speed Question

You will be asked what speed you can comfortably make to cover the 27.7nm between Gatun and Pedro Miguel Locks. The ACP would like you to go as fast as possible but they don’t want you to break down!

The main reason they ask you what speed you can make is so that they can call ahead with an ETA for arrival at the next locks.

If your engine does fail and you delay your exit from the Canal, you could lose your buffer deposit or face other charges for a tow or other assistance.

Sailing on the Canal

You are not supposed to use sails in Canal waters. This stems from a situation where a yacht lost control and ran in front of a big ship. Sometimes an Advisor will allow you to set a sail:

A big ship seeing a sail on the Canal was described by one Advisor as like an elephant seeing a mouse. There is no rational reason for preventing sail-assistance on a transit, other than it freaks out the big ship Pilots.


The Admeasurer will fill out, and ask you to sign, a pile of papers including:

  • 4614 Admeasurement Clearance and Handline Inspection: Required for payment of Canal tolls and fees
  • Attachment to 4614: to be filled in with your bank information and presented to Citibank when you make your payment – form 4352 outlines what you need
  • 4627 Handline Lockage Request: Type of lockage, a physical description of the yacht, and the equipment required aboard during the transit
  • 4312 Handline Undertaking to Release and Indemnify: Releases ACP from liability in case of any accident, damage or injury, caused by use of equipment aboard the yacht that does not meet Panama Canal requirements
  • Ship’s Information and Quarantine Declaration
  • You will receive your Panama Canal Ship Identification Number (SIN)

The Admeasurement Clearance and Handline Inspection form is good for up to six months

The SIN number is good for the life of the yacht. The card with your SIN number is required to be displayed on the bridge or navigation station and should be turned over to a new owner if you sell your yacht. defines Admeasure as: to determine the dimensions, capacity, weight, and other details of a vessel, as for an official registration, documentation, or yacht handicap rating

On to Pay the Fees or back to Preparation