Safety and Professional Practice
What this domain tests
Logging safety requirements, hazard recognition, chainsaw and cable operations, and the professional judgment expected of a certified practitioner.
Core rules
- OSHA 1910.266 covers logging operations: training, PPE, first aid and CPR availability, machine guards, and safe work procedures. Hard hats, eye and hearing protection, cut-resistant leg protection, and boots are baseline.
- Manual felling: clear the escape route at 45 degrees from the fall line, use a proper notch and back cut, and keep bystanders at least two tree lengths away. Never turn your back on a falling tree.
- Hung trees are the classic fatality scenario. Do not cut the supporting tree; use a winch or mechanical aid, or leave the tree and move others away.
- Cable and rigging systems require inspected lines, rated hardware, and a communication protocol. Never stand in the bight of a line or under a load.
- Fatigue and lone work drive incidents; job briefings, radio checks, and a check-in schedule are controls, not paperwork.
Worked example
A 90-foot tree requires a minimum clearance of two tree lengths, or 180 feet, for ground personnel. On a 20 percent slope the fall line shifts, so the escape route must be planned uphill or downhill accordingly, and the feller confirms the 180-foot zone is clear before the back cut begins. If a second worker is inside that radius, the cut waits.
Traps
Assuming chaps stop every cut; felling alone without communication; cutting a hung tree from the stump side; using unrated hardware; skipping the job briefing because the crew has worked together for years.