- Inland Rules (33 CFR Part 83)vsCOLREGs (International)
Inland Rules vs International COLREGs — Side by Side
Where the US Inland Navigation Rules diverge from the international COLREGs: Rule 9, Rule 10, Rule 24, Rule 28, and Rule 34.
Compare side by side - USCG Captain's LicensevsState Boating License
Captain's License vs Boating License — What's the Difference?
A captain's license is a federal commercial credential; a boating license is a state-issued safety certificate. They are not interchangeable.
Compare side by side - OUPV (Six-Pack)vsMaster 100 GT
OUPV vs Master 100 — When to Upgrade
Should you go straight to Master 100 or start with OUPV? Sea-time, exam, vessel-authority, and career-trajectory differences.
Compare side by side - CaptainsGroundvsMariners Learning System
CaptainsGround vs Mariners Learning System
How CaptainsGround compares to Mariners Learning System on price, exam authority, content depth, and study tooling.
Compare side by side - CaptainsGroundvsUSCGQ.com
CaptainsGround vs USCGQ — Free Prep, Compared
Two free OUPV/Master prep tools, very different approaches: USCGQ is a question bank, CaptainsGround is a citation-backed study cockpit with lessons, drills, mock, and FSRS flashcards.
Compare side by side - CaptainsGroundvsIn-person USCG-approved school
CaptainsGround vs Bluewater Yachting / In-Person Courses
When an in-person course makes sense vs self-paced citation-backed prep — and how to combine both for the lowest-friction path.
Compare side by side - CaptainsGroundvsLAPWARE
CaptainsGround vs Lapware — USCG Exam Prep Compared
How CaptainsGround compares to LAPWARE on price, credential coverage, citations, and interface — for AB, QMED, and captain's license candidates.
Compare side by side - CaptainsGroundvsMariner Advancement
CaptainsGround vs Mariner Advancement — Compared
How CaptainsGround compares to Mariner Advancement (USB-drive exam-prep software) on delivery, price, citations, and updates — for AB, QMED, and license candidates.
Compare side by side - CaptainsGroundvsSeaSources
CaptainsGround vs SeaSources — Free USCG Prep, Compared
Two free USCG deck and engine exam-prep tools compared: SeaSources' large legacy question pool versus CaptainsGround's original, citation-audited questions for AB, QMED, and captain's licenses.
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