Run a Subchapter M fleet without the binder.
Subchapter M put towing vessels under a Towing Safety Management System, a Certificate of Inspection, and an audit cycle — a lot of new paperwork for operators who ran on a clipboard for decades. Binnacle carries the whole load: the maintenance system the TSMS expects, the COI and survey clock, and the crew credentials and rest hours an audit checks.
It is one login for the office and the boat, so the captain logs the drill or the sounding once and the office sees it — no end-of-month reconstruction before an external audit.
Regulatory basis
Built for 46 CFR Subchapter M (Parts 136-144), the Towing Safety Management System option, and the Certificate of Inspection and survey requirements that came with it.
What matters most for tug & barge
Vessel Compliance & Certificates
Every vessel matched to its 46 CFR requirements, with the certificate clock running on each.
Maintenance & Engineering
A planned maintenance system that watches the engine for you and keeps the parts ledger honest.
Crew & Credentials
Every license, endorsement, and medical tracked to its renewal cycle — and flagged before it lapses.
Safety & Drills
The drill cadence, the muster list, and the LSA/FFE inventory a 46 CFR 199 inspection asks for.
Operations & Logbooks
The official logbook and every operational record, time-stamped and signed.
Environmental — MARPOL
Every record book a Port State Control officer can ask to see, in one place.
And the rest of the platform — see all features.
Questions
Does it support the TSMS option?
Yes. The planned-maintenance system, document control, drill cadence, and audit trail are built to support a Towing Safety Management System, with an audit-readiness score that shows your gaps before an external audit.
Will it track my Certificate of Inspection?
Each towing vessel carries its COI and survey dates, auto-validated against Subchapter M requirements, with alerts before anything lapses.