Unit of competency Outline

Date retreived
22/07/2026 8:10 AM AWST

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Tie, dress, set and finish arborist knots

Tie, dress, set and finish arborist knots

Unit of competency
National Code
AHCARB311
State Code
BAR22
TGA Status
Replaced
DTWD Status
Transition (Replaced)
Current Release Number
1.00
Current Release Date
27/06/2016
View on TGA
State Implementation and Classification
Approved Date
12/01/2017
Field of Education
050301 - Horticulture
Original Release Date
12/01/2017
Nominal Hours
25
Description
This unit of competency describes the skills and knowledge required to tie, dress, set and finish arborist knots, hitches and bends.This unit applies to ground based workers undertake defined activities with appropriate methods, tools and information, work in a structured context , apply knowledge and skills to demonstrate limited autonomy and judgement, and provide solutions to a limited range of predictable problems. Work is implemented with low risk work procedures and to comply with Safe Work Method Statement documentation.Licensing, legislative, regulatory, or certification requirements apply to this unit in some states and territories at the time of publication, and may differ according to jurisdiction. Specific determination should be sought through the relevant State or Territory. Works involving this unit of competency may be subject to local tree protection and preservation laws, and the relevant content of applicable Australian Standards.
Notes
Elements and Performance Criteria
1. Assist in preparation of work site
  • 1.1 Undertake a site-specific risk assessment by identifying work health and safety hazards and assessing risk
  • 1.2 Confirm first aid and emergency equipment and procedures applicable to tree work
  • 1.3 Carry out pre-operational and safety checks on ropes and equipment
  • 1.4 Select and use appropriate personal protective equipment
  • 1.5 Record and implement work health, safety, site, environmental and traffic control measures
2. Tie, dress and set arborist knots
  • 2.1 Communicate with work team during operations using voice, hand and whistle signals
  • 2.2 Determine work application for knot for ground-based, aerial, rigging and climbing work tasks
  • 2.3 Determine appropriate knot for locking and non-locking attributes, strength, impact on rope strength, loosening and slippage
  • 2.4 Determine loss of rope strength in using selected knot
  • 2.5 Determine appropriate rope for knot application
  • 2.6 Determine requirements for secondary knots and stopper knots
  • 2.7 Tie rope to form intended knot
  • 2.8 Leave appropriate tail length approximately five times diameter of rope
  • 2.9 Dress knot to align all parts of knot
  • 2.10 Adjust knot to appropriate proportions
  • 2.11 Set knot to ‘tighten and load’ knot prior to use
  • 2.12 Finish knot with selected stopper knot, tucked tail or suitable tail length
3. Inspect and use knot
  • 3.1 Inspect completed knot
  • 3.2 Check knot for correctness of assembly
  • 3.3 Confirm knot for correct work application
  • 3.4 Maintain effective communication with work team
  • 3.5 Install and use knot in work application
  • 3.6 Untie knot at completion of work task
4. Complete knot operations
  • 4.1 Clean and check ropes
  • 4.2 Report and tag faulty or worn ropes
  • 4.3 Clean and store personal protective equipment
No information
No information
Replaced By
State Code National Code Title Type
OBV39 AHCARB317 Dismantle trees Unit of competency
OBV60 AHCARB213 Perform ground-based rigging Unit of competency
OBV69 AHCARB318 Undertake aerial rescue Unit of competency
OBV66 AHCARB319 Use arborist climbing techniques Unit of competency
State Code National Code Title Type
BCX6 AHC20516 Certificate II in Arboriculture Qualification
BDE4 AHC30816 Certificate III in Arboriculture Qualification
BDE6 AHC20416 Certificate II in Horticulture Qualification