Give the name and describe the professional regulatory organization that Canadian Landscapers should be part of.

The Canadian Landscape Standard (CLS) is the professional regulatory organization for Canadian Landscapers. It is a national standard that sets out the requirements for professional landscape services and provides a framework for the development of professional landscape practices. The CLS is a voluntary program that provides a set of standards and guidelines for the professional practice of landscape services. It is designed to ensure that landscape services are provided in a safe, efficient, and effective manner. The CLS also provides a platform for the exchange of information and ideas between landscape professionals and the public.