|(a) No one other than the irrigator, installer, irrigation technician, or irrigation inspector to whom a license is issued shall use or attempt to use the license, which includes the license number. (b) An individual who uses or attempts to use the license or license number of someone else who is a licensed irrigator, licensed installer, licensed irrigation technician, or licensed irrigation inspector is in violation of Texas Occupations Code, Chapter 1903, and this chapter. (c) An irrigator's license or license number may be used at only one entity as the irrigator-in-charge. An irrigator may work for other entities, but not as the irrigator-in-charge. (d) It is a violation of this chapter for an irrigator, installer, irrigation technician or irrigation inspector to authorize or allow another person or entity to use the irrigator's, installer's, irrigation technician's, or irrigation inspector's license or license number in a manner inconsistent with this chapter.