who is designed to maintain an dequate base of qualified and trained professional

Professional carpet cleaners do not have to be certified or qualified. However good knowlage of cleaning products machinery and chemicals involved would be a must.

Qualified Professional

A general definition of the term "professional" is somebody who does something at a level where they are qualified to do it, and are paid accordingly.

An acupuncturist formulates herbal preparations to treat conditions in consideration to herbal properties that are related to taste, toxicity, and assess patients' general physical appearance to make diagnosis.