(B) Paragraph (A) of this rule does not apply to an employee or agent of a firm owning the cryogenic vessel and is charged with the responsibility of conducting applicable vessel maintenance, changing service from one medical gas to another, or bringing a vessel into compliance with section 4729.70 of the Revised Code.
(1) Such employee or agent shall meet at least the following requirements:
(b) Successful participation and demonstrated competency in a cryogenic vessel modification program administered by an instructor with the appropriate education and experience. The program must be based on written and validated procedures. The employee or agent must participate in the program annually and it must include at least the following procedures:
(i) Removing, adding, or adapting cryogenic vessel connections and valves.
(ii) Modifying cryogenic vessels.
(iii) Conducting cryogenic vessel maintenance.
(iv) Changing the cryogenic vessel from one medical gas to another.
(vi) Silver brazing or welding techniques and certification of the individual if applicable.
(vii) Removing and adding suitable mechanical means to make a connection a permanent and integral part of the valve.
(2) The employer must document the successful participation and demonstrated competency of an employee or agent in a cryogenic vessel modification program. The documentation must be maintained by the employer for a period of at least three years and made available, upon request, to those business entities receiving service and to the state board of pharmacy.