24/7 physician access for vessels at sea.  Call 888.683.7988 or request a consultation →

24/7 line

888.683.7988

Blog
GUIDANCE FOR OPERATORS

Maritime medical compliance, explained

Most maritime medical guidance online is written by suppliers or software vendors with no clinical author. Everything here is reviewed by a board-certified emergency physician and cited to primary sources: 21 CFR, MLC 2006, 46 CFR and the WHO guide.
Reviewed by

Ann Jarris MD, FACEP

Sources

Primary regulation only

Written for

Operators and DPAs

Questions

24 / 7 physician line

Start with your question

Four questions decide your medical program

Skip the date-ordered archive. Pick the question you are actually facing, and go straight to the answer with the regulation behind it.
Question 01

Who may lawfully dispense what is aboard?

The three conditions a medical officer must meet, the multi-owner trap, and the two annual reports that run on different clocks, under 21 CFR 1301.25.
Question 02

What must the medicine chest contain?

Why there is no universal list, the four sources that set yours, and the 12-month inspection expectation under MLC 2006 and flag-state rules.
Question 03

Who does the crew call from open water?

The free advice you already have a right to under MLC 2006, where that baseline stops, and what a physician who knows your vessel adds.
Question 04

Who on the roster is fit to sail?

The six domains of the CG-719K exam, the waiver route under 46 CFR 10.303, and why most delays are paperwork, not disqualifications.
Most read

The regulation operators get wrong most often

COMPLIANCE

One DEA registration covers a fleet, until it does not

A single registration covers every vessel under one owner or operator. Add a second owner to that physician’s roster and 21 CFR 1301.25(c) demands more: either a separate registration held at each owner principal office, or the Form 223 documentation route. Operators discover this during an inspection, which is the worst moment to learn it.
How we publish

Why this guidance is different from a supplier blog

Physician reviewed

Reviewed by Ann Jarris MD, MBA, FACEP, a board-certified emergency physician, not an anonymous content team.

Primary sources only

Every regulatory claim cites the actual rule: eCFR, MLC 2006, the WHO guide, USCG. No secondhand summaries.

No invented numbers

Where no citable statistic exists, we say so rather than publishing a figure that cannot be traced.

Resources

Guidance and news for operators

Browse the compliance topics that decide what your fleet must carry, who can dispense it, and who is fit to sail.
When to evacuate or disembark a seafarer, and who actually decides | Discovery Health MD

When to evacuate or disembark a seafarer, and who actually decides

The 2024 MLC amendments changed medical care, but not the part most operators assume | Discovery Health MD

The 2024 MLC amendments changed medical care, but not the part most operators assume

What a port state inspector actually opens in your medicine chest | Discovery Health MD

What a port state inspector actually opens in your medicine chest

DEA asked how to fix the vessel controlled substance rules, then the effort was withdrawn | Discovery Health MD

DEA asked how to fix the vessel controlled substance rules, then the effort was withdrawn

Days from shore planning medical capability by time to definitive care | Discovery Health MD

Days from shore: planning medical capability by time to definitive care

Who is responsible for crew medical compliance, the owner or the DPA | Discovery Health MD

Who is responsible for crew medical compliance, the owner or the DPA?

What a US commercial fishing vessel actually has to do about medical care | Discovery Health MD

What a US commercial fishing vessel actually has to do about medical care

Category A, B and C medicine chests what 92-29-EEC actually requires | Discovery Health MD

Category A, B and C medicine chests: what 92/29/EEC actually requires

46 CFR 28.210 requires a medicine chest and never says what goes in it | Discovery Health MD

46 CFR 28.210 requires a medicine chest and never says what goes in it

Changing flag state the six medical obligations that change on the transfer date | Discovery Health MD

Changing flag state: the six medical obligations that change on the transfer date

Alaska fishing vessel medical compliance one federal trigger and three clocks | Discovery Health MD

Alaska fishing vessel medical compliance: one federal trigger and three clocks

Setting up a vessel medical program the six decisions that come first | Discovery Health MD

Setting up a vessel medical program: the six decisions that come first

Schedule II to V aboard a vessel what actually changes | Discovery Health MD

Schedule II to V aboard a vessel: what actually changes

The document checklist for a DEA look at a vessel program | Discovery Health MD

The document checklist for a DEA look at a vessel program

Disposing of expired controlled substances from a ship's medicine chest | Discovery Health MD

Disposing of expired controlled substances from a ship's medicine chest

The two annual reports a vessel controlled substances program owes | Discovery Health MD

The two annual reports a vessel controlled substances program owes

How to stock a ship medicine chest, step by step | Discovery Health MD

How to stock a ship medicine chest, step by step

Vessel medical compliance audit what an inspector actually checks | Discovery Health MD

Vessel medical compliance audit: what an inspector actually checks

Controlled substances recordkeeping aboard a vessel | Discovery Health MD

Controlled substances recordkeeping aboard a vessel

DEA medical officer or master requisition which route fits your fleet | Discovery Health MD

DEA medical officer or master requisition: which route fits your fleet

Ship medicine chest requirements by flag state, compared | Discovery Health MD

Ship medicine chest requirements by flag state, compared

ISO Certification Tracking Best Practices to Stay Audit-Ready Year-Round | Discovery Health MD

21 CFR 1301.25 explained, for the people who have to comply with it

Organize a Training Session That Improves Compliance and Performance | Discovery Health MD

Organize a Training Session That Improves Compliance and Performance

Complete Guide to Compliance Audit with Tracking Tools Preparation | Discovery Health MD

Complete Guide to Compliance Audit with Tracking Tools Preparation

Boost Procurement Performance with Smart Reminders for Better Vendor Relations | Discovery Health MD

Boost Procurement Performance with Smart Reminders for Better Vendor Relations

The Future of ISO Preparing Your Certification Strategy for the 2026 Updates | Discovery Health MD

The Future of ISO: Preparing Your Certification Strategy for the 2026 Updates

ISO Certification Tracking Best Practices to Stay Audit-Ready Year-Round | Discovery Health MD

ISO Certification Tracking Best Practices to Stay Audit-Ready Year-Round

Contract Management Software vs. Spreadsheets A Complete Comparison for Modern Businesses | Discovery Health MD

Contract Management Software vs. Spreadsheets: A Complete Comparison for Modern Businesses

Certification Tracking Guide Tools, Benefits, and Enterprise Compliance Software | Discovery Health MD

Certification Tracking Guide: Tools, Benefits, and Enterprise Compliance Software

Compliance Training Guide Reduce Risk, Automate Renewals, and Stay Audit-Ready | Discovery Health MD

Compliance Training Guide: Reduce Risk, Automate Renewals, and Stay Audit-Ready

Army Training and Certification Tracking System Retires May 1, Replaced by Simplified Account Validation Platform | Discovery Health MD

Army Training and Certification Tracking System Retires May 1, Replaced by Simplified Account Validation Platform

Best AED for Church 5 Top Picks & Simple Buying Guide | Discovery Health MD

Best AED for Church: 5 Top Picks & Simple Buying Guide

Why Is Your AED Beeping Top Causes and Easy Fixes Explained | Discovery Health MD

Why Is Your AED Beeping? Top Causes and Easy Fixes Explained

Lifepak CR Plus Easy Guide to Replacing Pads and Battery

Lifepak CR Plus: Easy Guide to Replacing Pads and Battery

How to Die in Your Sleep Hidden Risks and Silent Killers Revealed | Discovery Health MD

How to Die in Your Sleep: Hidden Risks and Silent Killers Revealed

Best AEDs Explained Decode Reviews and Find the Ideal Device | Discovery Health MD

Best AEDs Explained: Decode Reviews and Find the Ideal Device

The Difference Between Semiautomatic and Automatic AEDs A Complete Guide | Discovery Health MD

The Difference Between Semiautomatic and Automatic AEDs: A Complete Guide

How to Use an AED Properly Easy Step-by-Step Instructions | Discovery Health MD

How to Use an AED Properly: Easy Step-by-Step Instructions

Discovery Health featured in GeekWire: ‘How this health startup serving the maritime industry saw huge growth in the pandemic’

Ann Jarris, CEO of Discovery Health MD speaks with Intrafish: ‘Alaska is being pretty hands off this year when it comes to COVID requirements’

Washington State Department of Health: COVID-19 Public Health Guidance for Commercial Maritime Settings

Monkeypox Updates

Spokane Valley COVID-19 Testing Site to Close on 9/9

Common questions

Answers buyers and search engines look for

What maritime medical services does a vessel actually need?

At minimum: a compliant medicine chest for the flag state, a lawful route for controlled substances aboard, medical advice reachable at sea, and mariners certified fit to sail. Discovery Health MD runs all four under one physician team, so the pieces match each other instead of coming from four vendors.

Yes. Most fleets start where the pressure is, usually controlled substances or the medicine chest, then add consulting support. Because the same physicians run every line, adding a service does not mean re-explaining your fleet.

Because the four are connected. The physician advising at sea should know what is in the chest, the chest cannot legally hold controlled substances without a registered medical officer, and crew health history informs both. Split them across vendors and the gaps appear between them.

Yes. The company was built in Seattle around commercial fishing and workboat operations, where crews are small and the nearest hospital can be days away.

A named, board-certified emergency physician. Ann Jarris MD, MBA, FACEP is CEO and co-founder, and every service line runs under physician direction. Meet the physicians →

References.21 CFR 1301.25 (controlled substances aboard vessels). Maritime Labour Convention, 2006, Standard A4.1 and Guideline B4.1.1. WHO International Medical Guide for Ships, 3rd edition. EU Directive 92/29/EEC. 46 CFR Part 10, subpart C. STCW Regulation I/9. Marshall Islands Marine Notice 7-042-1.

Talk to a physician about your fleet

Tell us your vessels. We will map the coverage they need.

Share your fleet, flags and routes. A physician reviews all four areas and shows you exactly where the gaps are, in one conversation.
Scroll to Top