In rendering professional services, a licensed tree expert shall comply in all respects with applicable laws and regulations pertaining to tree expert services. A licensed tree expert may not engage in any form of false or misleading advertising or promotional activities, including, but not limited to, the falsification or misrepresentation of: The work of a licensed tree expert or of an individual employed by the tree expert; The academic or professional qualifications or affiliations of the licensed tree expert; or The experience or licensing status of the licensed tree expert. A licensed tree expert may not use private property adjacent to a client's property as work area, or to gain access to the client's property, without the private property owner's written permission. A licensed tree expert shall ensure the safe operation of all equipment used in the performance of tree expert services. In the performance of tree expert services, a licensed tree expert shall make every reasonable effort to protect the safety, health, property, and welfare of the public. A licensed tree expert shall cooperate fully with the Department of Natural Resources Forest Service in an investigation or adjudication of an alleged violation of tree expert statutes or regulations and, upon request, shall provide copies of documents to the Department of Natural Resources. A licensed tree expert shall, within a reasonable time, inform the Department of Natural Resources Forest Service in writing of a change in address, telephone number, or employment.