R.I. Gen. Laws § 2-19-1: Practices subject to chapter.

The term arborist as used in this chapter means any person, firm or corporation who makes a business or practice of pruning, trimming, spraying or repairing fruit, shade and ornamental trees, and includes any lines of work that are commonly included under the terms tree surgery, tree dentistry, tree spraying, tree pruning, and the work of foresters and entomologists as applied to the care of fruit, shade, forest and ornamental trees and shrubs. The provisions of this chapter shall not apply to the Rhode Island resource recovery corporation established in chapter 23-19.