(a) To be eligible for a Medical Gas Piping Installation Endorsement an applicant must:(1) hold a current Texas Journeyman Plumber, Master Plumber or Plumbing Inspector License; and(2) have successfully completed an approved training program in medical gas piping installation, which is based on the standards contained in the latest edition of the National Fire Protection Association 99 Health Care Facilities Code (NFPA 99), or may demonstrate the successful completion of the Professional Qualification Standard for Medical Gas Systems Personnel Series 6000, Standard 6010, latest edition, recognized by the American Society of Sanitation Engineers (ASSE).(b) At a minimum, the training program required by subsection (a)(2) of this section shall:(1) consist of at least twenty-four (24) hours dedicated to classroom presentation, shop demonstration and testing of the enrollee's comprehension of the course material;(2) address the responsibilities of an endorsement-holder as outlined in the current edition of the NFPA 99, Plumbing License Law and Board Rules;(3) address the proper installation and testing requirements for medical gas and vacuum piping systems, as outlined in the current edition of the NFPA 99; and(4) include at least four (4) hours of shop demonstration covering the proper assembly, purging and brazing procedures for horizontal and vertical joints.