Section 326-E:4 - Professional IdentificationI. A person holding a license to practice respiratory care in this state shall use the title "respiratory care practitioner" and the abbreviation, "R.C.P .".II. The licensee shall show his or her license when requested.III. A person matriculated in an accredited respiratory care or polysomnographic technology education program shall display appropriate identification.IV. A person or business entity, its employees, agents, or representatives shall not use in conjunction with that person's name or the activity of the business the words "respiratory care", "respiratory therapy", "respiratory care practitioner", "respiratory therapist", the letters "R.T." or "R.C.P", or any other words, abbreviations, or insignia indicating or implying directly or indirectly that respiratory care is provided or supplied, including the billing of services labeled as respiratory care, unless such services are provided by or under the direction of a respiratory care practitioner licensed under this chapter. 2003, 310 : 2 , eff. July 1, 2003.