Last updated 2026-08-18
TL;DR
Your USCG OUPV (six-pack) credential renews every five years through the National Maritime Center. You need a current medical certificate, proof of sea service, and a completed CG-719B application. Federal fees run about $95 for a single-endorsement renewal. California adds no state captain's license on top of this. Plan on 4 to 12 weeks from submission to new credential.
Do you need a license for six-pack captain in California?
Yes, and it's federal, not a California license. The credential you need is the USCG Operator of Uninspected Passenger Vessels (OUPV), which most people call the six-pack captain license because it covers passenger-for-hire trips on uninspected vessels carrying up to six paying passengers. The Coast Guard issues it. Sacramento does not.
California has no separate state-issued commercial captain's license sitting alongside the USCG OUPV. Some state boating laws apply on inland waters, and California State Parks runs boating safety education under California Harbors and Navigation Code, but none of that replaces the federal OUPV for commercial passenger work [1]. The federal license is the thing. Get it, keep it current, and you're covered on the federal side.
One detail catches California captains off guard. If you run San Francisco Bay or other USCG-designated waters, the route endorsement on your credential matters. Your OUPV is issued for inland waters, near-coastal waters, or both. Match the endorsement to the waters where you actually carry passengers.
How often does your USCG OUPV credential need to be renewed?
The USCG credential has a five-year term. Every five years you file a renewal through the National Maritime Center (NMC), the Coast Guard office that handles all mariner credentials [2]. You can start up to eight months before expiration without losing any time on the new credential's five-year clock. That eight-month head start is the single best habit a working captain can build.
Let the credential lapse and you're no longer renewing. You're reinstating, which means more documentation, possibly a repeat physical, and sometimes a return to exam elements. Don't let it lapse. Set a calendar reminder at eight months out.
The NMC tracks credentials through its Homeport portal and the Credential Holder Status system. Not sure when yours expires? Look it up through the NMC. California captains in USCG District 11 (most of the state) should know the old Regional Examination Center is gone; everything now routes through the NMC in Martinsburg, West Virginia, online or by mail.
What documents does the USCG require for OUPV renewal?
The core renewal packet has four parts. First is the CG-719B application, the standard mariner form the NMC uses for renewals, upgrades, and new credentials [3]. Second is a valid Transportation Worker Identification Credential (TWIC) or an accepted citizenship equivalent. Third is a current USCG-accepted medical certificate. Fourth is proof of sea service.
Sea service is where people stumble. For a straight renewal with no upgrade, you need 90 days of underway service on the appropriate waters within the five years before your application, or completion of an approved refresher or Professional Development course. You can also show recent service in the maritime industry in a capacity that demonstrates continued professional competence. The NMC's Navigation and Vessel Inspection Circular (NVIC) 02-14 spells out the documentation standards, and it's worth reading straight from the source instead of trusting dock talk [4].
The medical certificate is form CG-719K, completed by a licensed physician, dated within 12 months of your application [10]. No California-specific medical requirement layers on top. Federal standards apply, and the examining physician doesn't need to be in California.
Here are the required renewal documents:
| Document | Form | Notes |
|---|---|---|
| Mariner application | CG-719B | Signed, dated within 90 days |
| Medical certificate | CG-719K | Completed physician exam, dated within 12 months |
| Sea service proof | Employer letter or sea service form | 90 days underway within 5 years, OR approved course |
| TWIC or citizenship proof | TWIC card or passport/birth cert | Must be valid |
| Drug test record (if applicable) | 5-panel DOT test | Required if no prior valid credential; renewal sometimes waived |
| Application fee | Paid via pay.gov | See fee section below |
How much does six-pack captain renewal cost in California?
You're paying federal fees, set by the NMC under 46 CFR Part 10. California charges nothing on top. The USCG fee schedule sets the renewal fee at $95 for a credential with a single endorsement [5]. Add an endorsement or make changes during the same renewal and extra fees apply, usually around $100 for a new endorsement.
The TWIC is separate and runs through TSA. On the current TSA fee schedule, a new TWIC costs $125.25, and a reduced fee of $60.25 applies if you hold a valid Hazardous Materials Endorsement on a CDL [6]. TWIC fees change, so confirm the current amount at TSA before you pay.
Your medical exam is the wild card. The CG-719K physical at a walk-in clinic or your primary care doctor runs roughly $75 to $200, depending on where in California you are and whether insurance covers occupational physicals. Nobody has good national data on average captain physical costs. That range comes from anecdotal reporting among maritime communities, not a study.
Budget $95 to $350 total for a clean renewal, driven mostly by TWIC status and the physical. Go to a concierge clinic in Los Angeles or San Francisco and you'll pay more for the exam.
How long does six-pack captain renewal take in California?
The NMC's posted goal is 30 days for a complete, error-free packet. Real life varies. The NMC publishes current processing times, and they've run from 4 weeks to over 12 weeks depending on volume and whether your packet has any deficiencies [7].
California adds no state processing delay, because there's no state license. Your packet goes straight to the NMC in Martinsburg, West Virginia, same as a captain in Florida or Alaska.
The biggest source of delay is an incomplete packet. A deficiency notice resets your clock. Missing signatures on the CG-719B, a medical certificate older than 12 months, or a sea service letter that skips the body of water or vessel type will each trigger one. Check everything twice before you mail it.
One practical note: if your credential expires while processing is pending, you can keep operating under the old credential, provided you submitted before the expiration date and the NMC acknowledges receipt. Carry your application receipt and any NMC correspondence. Don't lean on this to cut it close. Eight months early is not too early.
What sea service counts for OUPV renewal in California?
Sea service for OUPV renewal is counted in days, not hours, and a "day" is any day you spend at least four hours underway. You need 90 qualifying days in the five years before your application date [4].
For most California six-pack captains, that means logbook entries from charter fishing trips, whale watching runs, sailing charters, or bay tours. Each entry should record the date, vessel name, official number, waters operated (say, "San Francisco Bay, inland waters"), capacity (operator or mate), and hours underway. The NMC wants a signed sea service letter from your employer or, if you're self-employed, a self-certified letter backed by your vessel's logbook.
Missed long stretches during the five-year window? You might not hit 90 days. In that case the NMC accepts an approved Professional Development or refresher course in place of the full sea service requirement. The NMC keeps a list of approved course providers. Not every online boating course qualifies, so confirm approval status with the NMC before you pay for training.
Do California state boating laws affect your federal credential?
California's boating laws and the federal OUPV run on parallel tracks. The California Harbors and Navigation Code governs on-water conduct, vessel registration, and boater safety education in state waters, but it doesn't replace or modify your federal credential requirements [1].
A few California-specific things are worth knowing. The Division of Boating and Waterways, now part of California State Parks, runs boating safety education and vessel registration. A vessel operating on California waters needs registration with the DMV unless it's documented with the USCG. Documented vessels are federally registered and exempt from state registration. As a commercial operator, your vessel almost certainly should be USCG-documented anyway.
California also sets alcohol limits under Harbors and Navigation Code Section 655: a 0.08 BAC limit for vessel operators, and a tighter 0.04 limit for operators carrying passengers for hire [1]. That's state law, separate from federal rules. A BUI conviction doesn't automatically revoke your USCG credential, but it can open suspension or revocation proceedings, so the two are tied together in practice.
On federally-designated navigable waters in California (the Sacramento-San Joaquin Delta, San Francisco Bay, most coastal zones), federal jurisdiction is primary. The rules overlap. Comply with both.
Can you renew your OUPV credential online?
Partially. The NMC's Homeport portal lets you start applications and pay fees through pay.gov [7]. But the NMC still requires physical submission of original documents for most renewals, because of the signature, photo, and medical certificate requirements. You can't submit a scanned CG-719K. The original physician signature is required.
Here's the path most California captains actually use. Complete and sign the CG-719B, get the original CG-719K from your physician, gather your sea service documentation, and mail the whole packet by certified mail with return receipt to the NMC. Keep copies of everything. Pay the fee at pay.gov before you mail, and include the payment confirmation in your packet.
The NMC mailing address is: National Maritime Center, 100 Forbes Drive, Martinsburg, WV 25404. Confirm it hasn't changed before you mail anything; agency addresses update from time to time.
Building your renewal packet and want a checklist that walks through every USCG OUPV requirement in one place? OUPVPath's $149 USCG OUPV + Bareboat Kit at /start covers the full document sequence from initial application through renewal.
What happens if your California OUPV credential lapses?
A lapsed credential is a reinstatement, not a renewal, and the NMC treats them differently. The rules under 46 CFR 10.227 allow reinstatement within a set window after expiration, and requirements get stricter the longer you wait [8].
Within one year of expiration: apply for reinstatement with essentially the same packet as a renewal. The NMC may ask for an updated medical and sea service, but you generally don't retake exams.
One to three years after expiration: the NMC typically requires a practical demonstration or a refresher course on top of the standard renewal documents.
More than three years after expiration: the credential is generally considered expired beyond reinstatement, and you may have to reapply as a new applicant, which means repeating the original exam process.
Captains who run seasonal operations (salmon season, summer whale watching) and let their credentials slip should not assume they can restart the renewal process anytime. Check your expiration date today. The NMC can confirm your status in minutes.
How do California captains with inland-only endorsements handle coastal operations?
This is a real problem in California, because the state has both inland waterways (Delta, bays, lakes) and near-coastal waters (Pacific Ocean within 100 nautical miles of shore). If your OUPV specifies an inland route and you want to carry passengers outside the baseline into coastal waters, you need the near-coastal endorsement.
Adding near-coastal at renewal takes additional coastal sea service and may require additional examination. The NMC treats it as a partial upgrade, and the fee structure follows. It isn't a separate application; it rides along in your renewal packet with a note that you're requesting an endorsement addition.
Run only San Francisco Bay, Lake Tahoe, or the Delta? The inland endorsement is fine, and there's no reason to pay for near-coastal. Run ocean trips out of Santa Barbara, San Diego, or Bodega Bay? You need near-coastal. Operating outside your endorsed route with passengers for hire is a federal violation.
For comparison, see how neighboring coastal states handle OUPV renewal: six-pack captain renewal in Hawaii covers Pacific coastal endorsement specifics, and six-pack captain renewal in Alaska helps if you run both states seasonally.
What's the full renewal timeline from start to finish?
Here's a realistic timeline for a California captain doing a clean, no-complications renewal.
Month 1 (8 months before expiration): pull your current credential and confirm the expiration date. Log into NMC Homeport or call the NMC at 1-888-IASKNMC to verify your status. Start gathering sea service records from your logbook.
Month 2: schedule your CG-719K physical. If your TWIC expires within the next year, start that renewal separately at a TSA enrollment center (California has several, including Los Angeles, San Diego, San Francisco, and Oakland).
Month 3: complete the CG-719B, get your physician to fill out the CG-719K, compile your sea service letter, and assemble the packet. Pay the fee on pay.gov. Mail everything certified.
Month 4 to 6: NMC processing. Answer any deficiency letters fast. The NMC mails the new credential to your address of record.
Month 6 to 7: receive the credential. Confirm the endorsements, name spelling, and dates are correct. If there's an error, contact the NMC right away; corrections can add weeks.
Start to finish, from "I should get on this" to "credential in hand," comfortably fits inside six months when nothing goes wrong. Eight months buys a buffer for deficiencies or NMC backlogs.
For a look at how another western state runs this, six-pack captain renewal in Arizona lays out the same federal steps in a different state context. OUPVPath covers the full federal document path in detail; it's worth bookmarking as a standalone reference.
Frequently asked questions
Do you need a license to be a six-pack captain in California?
Yes. The required credential is the USCG OUPV (Operator of Uninspected Passenger Vessels), issued by the National Maritime Center. California has no separate state-level captain's license. The OUPV covers commercial passenger-for-hire trips on uninspected vessels with up to six paying passengers. You need it whether you're on San Francisco Bay, the Sacramento Delta, or the Pacific coast.
How much does a six-pack captain license cost in California?
California adds no state fee. Federal NMC renewal fees run about $95 for a single-endorsement credential under 46 CFR Part 10. Add $75 to $200 for your CG-719K medical physical, and potentially $125.25 for TWIC renewal if yours is expiring. Realistic budget for a clean renewal: $95 to $350, depending on your TWIC status and where you get the physical done.
How long does six-pack captain renewal take in California?
The NMC's processing goal is 30 days for a complete packet, but real-world times run 4 to 12 weeks depending on volume and packet completeness. California adds no state processing delay. The most common cause of a long timeline is a deficiency notice from the NMC for incomplete or missing documents. Start eight months before expiration to keep a buffer.
Can a California six-pack captain renew online?
Partially. You can pay fees via pay.gov and start some forms through the NMC's Homeport portal, but the NMC still requires original physical documents, including the signed CG-719K medical certificate, for most renewals. The practical approach: complete all paperwork, then mail the full packet by certified mail to the NMC in Martinsburg, West Virginia.
How many days of sea service do you need to renew a USCG OUPV?
You need 90 days of underway service on appropriate waters within the five years before your application. A qualifying day means at least four hours underway. If you haven't hit 90 days, the NMC accepts completion of an approved refresher or Professional Development course as an alternative. Verify course approval with the NMC before enrolling.
Does California have any additional requirements for commercial boat captains?
California adds no state-issued captain's license, but state laws still apply on California waters. California Harbors and Navigation Code Section 655 sets a 0.04 BAC limit for operators carrying passengers for hire, stricter than the standard 0.08. Vessel registration with the California DMV is required unless your vessel is federally documented. The Division of Boating and Waterways runs state boating rules separately from the federal OUPV system.
What happens if your OUPV credential expires before you renew?
Within one year of expiration, the NMC generally allows reinstatement with a packet similar to a standard renewal. Between one and three years out, additional course or practical requirements typically apply. Beyond three years, you may have to reapply as a new applicant and retake exams. You cannot legally carry passengers for hire on an expired credential. Don't let it lapse.
What is the CG-719B form and where do you get it?
CG-719B is the USCG's standard Merchant Mariner Application form used for new credentials, renewals, upgrades, and endorsement additions. You download it directly from the NMC forms page. It covers personal information, sea service, drug testing history, and prior credential information. It must be signed and dated within 90 days of submission.
Does the TWIC need to be renewed at the same time as your OUPV?
No, TWIC and OUPV renewals are separate. TWIC is administered by TSA and has its own five-year term. They won't expire on the same date unless by coincidence. If your TWIC is expiring soon, renew it through a TSA enrollment center. In California, centers are located in Los Angeles, San Diego, San Francisco, Oakland, and other major ports.
Can you operate while your OUPV renewal is pending?
Generally yes, if you submitted your renewal before your credential expired and can show NMC receipt of the application. Carry your application receipt and any NMC correspondence while operating. This provision exists so captains aren't grounded by processing delays. It's not a reason to submit late; submit early and don't treat it as a safety net.
What's the difference between the inland and near-coastal OUPV endorsement in California?
The inland endorsement covers specified inland waterways like San Francisco Bay, the Sacramento-San Joaquin Delta, and similar waters. Near-coastal covers ocean operations within 100 nautical miles of shore. California captains running ocean charters off Santa Barbara, San Diego, or Bodega Bay need the near-coastal endorsement. Operating outside your endorsed route with paying passengers is a federal violation.
Where do California captains mail their OUPV renewal packet?
All applications go to the NMC in Martinsburg, West Virginia: National Maritime Center, 100 Forbes Drive, Martinsburg, WV 25404. California's USCG District 11 regional office does not process mariner credentials; that moved to the centralized NMC years ago. Send by certified mail with return receipt and keep copies of everything. Confirm the address is current before mailing.
How do you prove sea service if you're a self-employed charter captain?
Self-employed captains can submit a self-certified sea service letter backed by the vessel's official logbook. The letter should include your name, the vessel's name and official number, the waters operated, your capacity (master or operator), and the dates and days of service. The NMC may ask for supporting documentation. Keep clean, consistent logbook records through the season for exactly this reason.
Is a first aid or CPR certification required for OUPV renewal?
The OUPV renewal itself doesn't require a separate first aid or CPR certificate as a standalone document. CPR and first aid are typically part of the original OUPV qualification, and some course providers include them in refresher packages used to substitute for sea service. Check with the NMC if you're using a course in lieu of sea service to confirm exactly what it must include.
Sources
- California Legislative Information, Harbors and Navigation Code Section 655: California sets a 0.04 BAC limit for vessel operators carrying passengers for hire, and Harbors and Navigation Code Section 658.5 governs boater safety education in state waters
- USCG National Maritime Center, Merchant Mariner Credentials Overview: USCG OUPV credentials are issued for five-year terms and renewed through the National Maritime Center
- USCG National Maritime Center, CG-719B Application Form: CG-719B is the standard USCG Merchant Mariner Application form used for renewals, upgrades, and new credentials
- USCG Navigation and Vessel Inspection Circular NVIC 02-14, Sea Service Requirements: 90 days of underway service within five years is the sea service standard for OUPV renewal, with a day defined as at least four hours underway
- Code of Federal Regulations, 46 CFR Part 10, Merchant Mariner Credential: 46 CFR Part 10 governs mariner credential requirements and fee structures set by the NMC under the Coast Guard Authorization Act
- TSA, TWIC Enrollment Fees: TWIC new enrollment fee is $125.25; reduced fee of $60.25 applies for applicants with a valid HME on a CDL
- USCG National Maritime Center, Application Processing Times: NMC posts current processing times and its goal is 30-day processing for complete, error-free renewal packets; actual times have ranged from 4 to 12+ weeks
- Code of Federal Regulations, 46 CFR 10.227, Renewal and Continuity of Credentials: 46 CFR 10.227 governs reinstatement requirements for lapsed credentials and the tiered requirements based on how long a credential has been expired
- USCG National Maritime Center, Merchant Mariner Credential Medical Certificate CG-719K: CG-719K medical certificate must be completed by a licensed physician and dated within 12 months of application submission