What codes and regulators say about rigging, felling, cranes, storm cleanup and wildfire work, plus the arithmetic tools for log weight and loads.
40 pages in this topic. Each guide names its sources and the date they were read.
Number, Ofqual reference, hours, entry awards, assessment time and unit content for the Level 3 Certificate of Competence in Aerial Tree Rigging, plus how Lantra Awards words its own rigging award.
What the SafeWork NSW code, the WorkSafe New Zealand arboriculture code and the HSE lifting equipment page say about lowering branches and tree sections: rated equipment, the safe working load, where the lowering point sits, who stands where, and how hardware is marked.
The vocabulary of a ground crew on a rigging job, grouped by kind: gear, knots by name, methods, load words and calls.
What the SafeWork NSW code, the WorkSafe New Zealand arboriculture code and the HSE lifting equipment page say about lowering branches and tree sections: rated equipment, the safe working load, where the lowering point sits, who stands where, and how hardware is marked.
A table of the main kinds of rigging gear in tree work, which page covers each, and which rule or standard the sources read name for it, from the SafeWork NSW code, the WorkSafe New Zealand code, HSE, OSHA, BSI and TCI Magazine.
What regulators and standards bodies say about connectors, pulleys and rope devices used in tree work, and what the kN figures and the CE and UKCA marks on them are said to mean.
A table of the main kinds of rigging gear in tree work, which page covers each, and which rule or standard the sources read name for it, from the SafeWork NSW code, the WorkSafe New Zealand code, HSE, OSHA, BSI and TCI Magazine.
Type a log's diameter and length and pick a species to see an estimated green weight of the wood, using the Forest Service table.
Forest Service green weights per cubic foot, and the unit converter.
A table of what the OSHA logging standard, WorkSafeBC, HSE, the Irish HSA, SafeWork NSW, WorkSafe Victoria and WorkSafe New Zealand say about distances around a felling, escape routes, hung trees and weather, with a page for each place that has enough of its own facts.
How University of Georgia Extension defines a barber chair, and where OSHA, HSE, WorkSafe New Zealand and SafeWork NSW name a splitting trunk, a split hinge or a tree that may split, with the wording each uses.
How OSHA, HSE, the Irish HSA, WorkSafe New Zealand, SafeWork NSW and WorkSafeBC define and treat a tree that has not reached the ground: who stays clear, what is marked, how winch and machine pages describe signals, and what Irish leaflet 302 lists as things not done.
What regulators and official pages say about cranes used for tree removal, who must hold an operator licence or certificate, and who may sling the load, country by country.
How OSHA defines a spring pole and sets a distance for cutting one, and what Scottish Forestry, the Irish HSA, WorkSafe New Zealand and SafeWork NSW say about windthrown trees and cuts into wood under tension or compression.
A table of how six national weather services word their warnings for wind, thunderstorms and snow or ice, with a page for each hazard that reports what the services, OSHA, Scottish Forestry and the SafeWork NSW code say about trees and outdoor work.
After a big wind or ice storm the work piles up and the hazards change.
National, state and provincial emergency management and civil defence bodies, in each country's directory page.
A side by side of what regulators in Oregon and Victoria say about utility wildfire or bushfire plans and the clearance of trees from power lines, with the regions not yet read marked as such.