← Bloglicense-guide
The USCG Physical & Drug Test (CG-719K): What to Expect
The medical exam and drug test trip up more captain's license applications than the written test. Here's exactly what the CG-719K physical checks, what can disqualify you, and how to pass the drug screen.
You can ace the exam and still stall your license over paperwork from a doctor's office. The CG-719K physical and the CG-719P drug test are required for nearly every credential, and they're the steps applicants understand the least. Here's what actually happens and how to avoid surprises.
The CG-719K Medical Certificate
The CG-719K is a standardized medical and physical evaluation form completed by a licensed medical practitioner — a physician, physician assistant, or nurse practitioner. You don't need a special "maritime doctor," though many clinics that serve mariners know the form cold and can move faster.
What it covers:
- Vision: distance acuity (correctable to 20/40 in each eye for deck officers) and color vision — you must be able to distinguish the colors used in navigation lights and signals. Color vision is a common sticking point; there are alternative tests if you fail the standard plates.
- Hearing: you must be able to hear well enough to perform duties, with or without aids.
- General physical: blood pressure, heart, lungs, range of motion, and overall fitness to do the work of a mariner.
- Medical history: conditions like diabetes, cardiac issues, seizures, sleep apnea, and certain medications get extra scrutiny — not automatic disqualifiers, but they may require additional documentation or a waiver.
What Can Hold You Up
Most conditions don't disqualify you outright; they trigger a review where the NMC wants more information. The applicants who get delayed are usually the ones who show up with a condition and no supporting documentation. If you have a flagged condition, bring records, a treating physician's letter, and current test results so the evaluator can clear you in one pass.
The CG-719P Drug Test
Separately, you need a DOT 5-panel drug test — a urinalysis screening for marijuana, cocaine, opiates, amphetamines, and PCP. A negative result is required to be issued or renewed.
A few practical notes:
- It must be a DOT-compliant test at a certified collection site, not a drugstore kit.
- Marijuana matters regardless of state legality — the Coast Guard follows federal rules, and a positive will stop your application.
- If you're already in a random testing program through an employer, proof of participation may satisfy the requirement; check what the NMC accepts for your situation.
Pro Tips to Avoid Delays
- Bundle the visits. Many maritime clinics do the CG-719K and the DOT drug test in one appointment — cheaper and faster than two trips.
- Do it inside the validity window. The physical has a shelf life for your application; don't get it so early it expires before you submit, and not so late it bottlenecks everything.
- Bring your glasses/contacts and any medical records. If you correct to standard with lenses, wear them. If you have a flagged condition, over-document it.
- Budget realistically. The physical typically runs $100–$250 and the drug test $50–$100, depending on the provider.
Where This Fits in the Bigger Picture
The medical and drug test are two line items in a longer process — course, sea time, TWIC, application, and the exam. Map the whole cost and timeline with the cost & timeline estimator, track your sea time in parallel, and when the written exam is what's left, the Binnacle School question bank has you covered across every category.
Binnacle School is a study and planning resource and is not affiliated with the USCG or the National Maritime Center. Medical standards and accepted documentation change — confirm current requirements at uscg.mil/nmc.
You might also like
license-guide
USCG License Renewal: Step-by-Step (and the 5-Year Clock)
How to renew your USCG captain's license before it lapses — the 5-year clock, the renewal window, the recency requirement, and exactly what to submit. Don't let your credential expire.
Read →
exam-prep
USCG Engineering Exam Study Guide: What's Actually Tested
The engineering module on the USCG exam covers diesels, fuel and lube systems, pumps, and electrical basics. Here's what's tested, where people lose points, and how to study it efficiently.
Read →
license-guide
TWIC Card: How to Get One for Your Captain's License
Your first TWIC is required before the Coast Guard will issue your captain's license. Here's how to enroll, what it costs, how long it takes, and how to keep it from delaying your application.
Read →
Binnacle AI is not affiliated with, endorsed by, or sponsored by the U.S. Coast Guard. CFR citations refer to the current Code of Federal Regulations as of publication; confirm against eCFR before filing or inspection. This article is informational and is not legal advice — consult a qualified maritime attorney for specific regulatory questions.