The hook
The licensed PLS is responsible for the work of the crew they supervise. Direct supervision means you can answer for what happened in the field — the rules differ by state, but the principle is the same. Vicarious liability flows up; sloppy crew = sloppy PLS.
Memorize these
Concepts that show up on the exam
Direct (responsible) supervision
The licensed surveyor exercises authority over the technical aspects of the work. Specific definition varies by state.
Personal supervision
Some states require the PLS to be present during certain critical work (boundary monumentation, for example). Check state law.
Crew chief
Senior field technician (often unlicensed). Day-to-day field decisions, but final responsibility rests with the supervising PLS.
Office supervision
Reviewing computations, drafting, and analysis done in the office. Equally important as field supervision; often where blunders sneak in.
Stamp / seal
The PLS's seal on a survey carries legal responsibility for ALL of the work depicted, supervised or not. "I just stamped what they brought me" isn't a defense.
Span of supervision
How many crews / projects one PLS can realistically supervise. State boards have prosecuted PLSes who stamped work they couldn't possibly have supervised.
Test yourself
How well did it stick?
A quick 5-question check on Supervision. See where you stand and what to review.