The purpose of this chapter is to establish standards and procedures for the maintenance, removal and replacement of native trees in sensitive lands for their contribution to the functions and values of sensitive lands.
(Ord. 12-11 §1)
A. 
The provisions of this chapter are applicable within sensitive lands under City of Tigard jurisdiction described in Section 18.775.010.G of the Tigard Municipal Code. A map of sensitive lands is maintained by the city and is accessible to the public.
B. 
The city manager or designee shall utilize the map of sensitive lands to determine whether a particular tree is within sensitive lands. In order for the city manager or designee to reconsider his or her determination, a person shall provide a delineation by a professional land surveyor conducted in accordance with all applicable agency accepted methods for the sensitive lands type in question.
C. 
Only those native trees listed on the native tree list in the Urban Forestry Manual are subject to the provisions of this chapter.
(Ord. 12-11 §1)
A. 
Native trees greater than or equal to six-inch DBH and native trees that were required to be planted as replacement trees by the provisions of this chapter shall be maintained in a manner consistent with tree care industry standards and shall be maintained so as not to become hazard trees as defined in Chapter 8.02 of the Tigard Municipal Code.
B. 
If any native tree subject to the provisions of this chapter dies within three years after planting, it shall be removed and replaced in accordance with the previous permit approval. The sensitive lands tree removal provisions (Section 8.10.040 below) shall not apply to tree removal and replacement in accordance with this subsection.
(Ord. 12-11 §1)
Except as exempted by Section 8.10.030.B, no person shall remove any native tree greater than or equal to six-inch DBH, or any native tree less than six-inch DBH that was required to be planted as a replacement tree by the provisions of this chapter, without prior written approval obtained either through:
A. 
The City Manager Decision Making Procedures detailed in Section 8.04.020 using the approval criteria in the Sensitive Lands Tree Removal Standards in the Urban Forestry Manual; or
B. 
The City Board or Committee Decision Making Procedures detailed in Section 8.04.030.
(Ord. 12-11 §1)