No specific regulation has been found on TCM. TCM might still be governed by Portugal’s general regulation of CAM, which you can read about here.
On September 2, 2013 the Portuguese government introduced new regulation on Acupuncture, Phytotherapy, Homeopathy, Traditional Chinese Medicine (TCM), Naturopathy, Osteopathy and Chiropractic. (1st Series No. 168-2-September 2013 1 Law No. 71/2013 September 2 amends law no 45/2003 of 22 August). The law relates to exercise of professional activities applied in non-conventional therapies.
It applies to all professionals engaged in the practice of the above listed treatments. Professional titles are protected and are only allowed to holders of the relevant practicing certificate. The Central Administration of the Health System (‘Administração Central do Sistema de Saúde’, ACSS) established and maintains an updated, official register of those CAM professionals affected by the law (319). (http://www.acss.min-saude.pt//2016/12/14/terapeuticas-nao-convencionais-2/ , accessed 18th June 2019)