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3.1 Proper disposal of all tree debris generated. 3.2 Assuring good traffic control and minimize disruption of the public. 3.3 Assuring adequate safety of employees and the public. Prior to starting any tree work on an SAPRF tree, the Contractor must contact an authorized SAPRF representative. 4.0 ISA CERTIFICATION REQUIREMENTS The Contractor shall employee a full-time, permanently certified personnel, as accredited by the International Society of Arboriculture. 4.1 The Contractor shall employee an ISA Board Certified Master Arborist® to oversee the project. The ISA Board Certified Master Arborist® credential is the highest level of certification offered by ISA. This credential recognizes ISA Certified Arborists® who have reached the pinnacle their profession. In addition to passing an extensive scenario - based exam, candidates must abide by a Code of Ethics, which ensures quality of work. Fewer than two percent of all ISA Certified Arborists® currently hold this certification. 4.2 The Contractor shall employee an ISA Certified Arborist®-Tree Risk Assessment Qualification (TRAQ) Working/On Site Supervisor to be on site at all times work is in progress to manage the correct pruning of the trees. To earn an ISA Certified Arborist® credential, you must be trained and knowledgeable in all aspects of arboriculture. ISA Certified Arborist® have met all requirements to be eligible for the exam, which includes three or more years of full-time, eligible, practical work experience in arboriculture and/or a degree in the field of arboriculture, horticulture, landscape architecture, or forestry from a regionally accredited educational institute. This certification covers a large number of topics giving the candidates flexibility in the arboricultural profession. TRAQ is an ISA qualification program that trains arborists how to use the methodologies outlined in the ISA Best Management Practices for Tree Risk Assessment. This qualification promotes the safety of people and property by providing a standardized and systematic process for assessing tree risk. The results of a tree risk assessment can provide tree owners and risk managers with the information to make informed decisions to enhance tree benefits, health, and longevity. A Code of Ethics for ISA Certified Arborists® strengthens the credibility and reliability of the work force. This certification is accredited by the American National Standards Institute, meeting and exceeding ISO 17024. 4.3 All Contractor Working/On Site Supervisor shall be ISA Certified Tree Worker Climber Specialist® and/or The ISA Certified Tree Worker Aerial Lift Specialist®. To be a ISA Certified Tree Worker Climber Specialist®, candidates must have the skill and endurance to climb trees, demonstrate high regard for safety, and be able to get the job done off the ground. This credential is different from the other certifications because you ARE tested in both a classroom setting and a field setting. Candidates must have training in aerial rescue, CPR, and First Aid to obtain this certification. 4.4 The Contractor's employees shall be ISA Certified Tree Worker Aerial Lift Specialist when working on trees beneath or in the vicinity of utilities. The ISA Certified Tree City of Santa Ana RFP 16-063 Page 53 25K-37