Why a Drug Test Is Required to Renew Your MMC
Under 46 CFR Part 16, drug testing is a core condition of holding a merchant mariner credential. Specifically, 46 CFR § 16.220 requires periodic drug testing as part of the MMC application and renewal process. For most mariners this means a new test at renewal — but there are two exemptions under 46 CFR § 16.220(c) that can eliminate that requirement entirely, and one of them is a direct benefit of being in a random testing consortium.
The USCG adopted DOT drug testing standards under 49 CFR Part 40, which means the same procedural rules that govern drug tests for truck drivers and other safety-sensitive workers apply to mariners. A drug test taken at your family doctor's office, a general health clinic, or any non-DOT-compliant facility will not be accepted — no matter how recent it is.
Already in a Random Testing Consortium? You May Not Need a New Test
This is the exemption most mariners overlook — and it's the strongest practical reason to be enrolled in a consortium year-round.
Under 46 CFR § 16.220(c), you are not required to take a new drug test at renewal if either of the following is true:
- You passed a compliant drug test within the previous 6 months — a DOT 5-panel urine test meeting all Part 40 requirements, with negative results.
- You were enrolled in a 46 CFR 16.230 random testing program for at least 60 of the previous 185 days — meaning your name was actively in a random pool, subject to selection.
These are Options II and III on page 2 of the CG-719P. If you qualify, your C/TPA can document your exemption — typically a consortium enrollment letter confirming your active participation.
Enrolled with APCA's USCG Consortium?
If your enrollment covers the required window, APCA can confirm your exemption status and provide the consortium letter the NMC requires — no new drug test needed. Membership starts at $115/year.
What Makes a USCG Drug Test Valid
Not every drug test passes USCG muster. The Coast Guard is specific about what it will accept. Your test must meet all of the following criteria:
DOT 5-panel urine test only
Marijuana, cocaine, opiates, phencyclidine (PCP), and amphetamines/methamphetamines. Expanded panels or hair follicle tests do not satisfy the requirement.
SAMHSA-accredited laboratory
The specimen must go to a lab certified by the Substance Abuse and Mental Health Services Administration. Verify lab status through the SAMHSA certified laboratory list on the NMC's website.
Certified Medical Review Officer (MRO)
The MRO must appear on the Federal Drug Testing Custody and Control Form. Verify their certification through the AAMRO or MROCC directories.
Federal Drug Testing Custody and Control Form
The top of the form must read "Federal Drug Testing Custody and Control Form." If it doesn't, the NMC will reject it regardless of how recent the test is.
Dated within 185 days of your application
Per 46 CFR § 16.220(a), results older than 185 days are not acceptable. Don't get tested too far in advance of when you plan to submit your renewal package.
Copy 5 of the Custody and Control Form is your receipt when you get tested — it's not the same as your results. Results come from the MRO, typically within 24 to 48 hours of specimen collection.
How to Document Your Drug Test for the NMC
The USCG accepts several forms of documentation when you submit your renewal application. Any one of the following is sufficient:
Copy 2 of the Federal Drug Testing Custody and Control Form
Signed by the MRO, with the result clearly visible. This is the most direct proof of a negative result.
Completed CG-719P form (DOT/USCG Periodic Drug Testing Form)
Filled out by the MRO. Available directly from the NMC website. Useful when your testing facility is unfamiliar with mariner-specific requirements.
Signed letter from the testing facility
Must contain all required information and bear the MRO's signature.
The CG-719P (Rev. 04/17) is worth knowing about. It's an optional supplement — most mariners simply submit Copy 2 of the CCF signed by the MRO, which is the most direct proof of a negative result. The CG-719P functions as a belt-and-suspenders option: a single standardized document that consolidates all required information in the format the NMC expects, useful when your testing facility is unfamiliar with mariner-specific requirements. The form is available directly from the NMC website.
If you're going directly through a collection site without a C/TPA, confirm in advance that they will return your results to you and ask specifically whether they'll forward to the REC — don't assume it will happen automatically.
Let APCA Handle the Paperwork
As a USCG-approved C/TPA, APCA coordinates the testing, ensures your results are reviewed by a certified MRO, and can forward completed documentation — including a properly completed CG-719P — directly to the NMC or your local REC on your behalf.
The Bottom Line
Before you schedule a drug test, check whether you qualify for an exemption under 46 CFR § 16.220(c) — if you've been in a random testing consortium for at least 60 of the previous 185 days, you may not need a new test at all.
If you do need one, it must be a DOT 5-panel urine test at a SAMHSA-accredited lab, reviewed by a certified MRO, and submitted within 185 days of your application. A USCG-approved C/TPA like APCA can confirm your exemption status, coordinate the test if one is needed, and ensure your documentation package is complete before it reaches the NMC.
Frequently Asked Questions
If I'm enrolled in a random testing consortium, do I still need a drug test to renew my MMC?
Not necessarily. Under 46 CFR § 16.220(c), if you were enrolled in a random testing program for at least 60 of the previous 185 days, you qualify for an exemption and don't need a new test. Your C/TPA can provide a consortium letter documenting your enrollment to submit with your renewal application. If you're an APCA member, contact us and we can confirm whether your enrollment qualifies and provide the required documentation.
Can I use a drug test I took for another employer or purpose?
Only if it meets all USCG requirements: DOT 5-panel urine, SAMHSA-accredited lab, certified MRO, documented on the federal Custody and Control Form. A test taken for a pre-employment screening at a FMCSA-regulated company, for example, could potentially satisfy the requirement — but you must verify every element matches. When in doubt, take a fresh test through a DOT-compliant provider.
How do I find a USCG-compliant testing site?
The simplest option is to contact a USCG-approved C/TPA like APCA, which already knows exactly what the NMC requires and can coordinate the test, MRO review, and result forwarding for you. If you're finding a site independently, use the Foley DOT Collection Site Locator (foleyservices.com) and confirm the facility performs DOT 5-panel urine testing, uses a SAMHSA-certified lab, and provides MRO services.
Do I need the CG-719P form, or is it optional?
The CG-719P is optional — it's one of several accepted documentation formats. However, many mariners and their testing providers use it specifically because it's designed for this purpose and leaves little room for missing information. If your testing facility is unfamiliar with it, a C/TPA that works with mariners regularly will know the form and can ensure it's completed correctly.
Can APCA handle the whole process — test, MRO review, and forwarding to the NMC?
Yes. As a USCG-approved C/TPA, APCA coordinates DOT-compliant drug testing through partner labs, routes results through a certified MRO, and can forward the completed documentation to the NMC or your local REC on your behalf. Call (727) 522-2727 or visit apcadrugtesting.com to get started.
What happens if I submit a drug test that doesn't meet USCG requirements?
The NMC will reject your application or put it on hold pending corrected documentation, which means delays you don't need. Working through a USCG-approved C/TPA eliminates this risk — they know exactly what the NMC requires and will ensure your documentation is complete before it's submitted.