1990's
In 1993 the Independent Institutional review Board for Laser Acupuncture Research was established in Boston, Massachusetts. In 1997 the U.S. National Institute of Health gave approval to the practice of acupuncture. The North American Association for Laser Therapy (NAALT) was established in 1998 to review photobiological mechanisms, basic laser physics, treatment parameters, techniques, scientific and clinical laser communities and regulatory issues.