Specifications include, but are not limited to: Trees adjacent to pedestrian walkways shall have a minimum canopy clearance of eight feet (8’) above grade; Tree canopies that extend over street travel ways shall be pruned to provide canopy clearance of at least fifteen feet (15’) above the street pavement and curb. The Contractor shall have the continual capability of accurately measuring the height of overhanging limbs to check for compliance before and after the Contractor’s work; The Contractor shall provide adequate crew, equipment, and materials to safely and efficiently complete the project. Each such crew shall include a crew supervisor who shall be responsible for the crew’s activities. The crew supervisor shall always be available by phone at the site, and fluent in English