(a) In this section, “employee” means a person who receives compensation for work performed under the direct supervision of a land surveyor.
(b) On receipt of a certificate of registration, a registered professional land surveyor shall obtain an authorized seal bearing the person’s name and registration number and the title “Registered Professional Land Surveyor.”

(c) Each licensed state land surveyor shall obtain a seal of office. The seal must contain the license holder’s official title, “Licensed State Land Surveyor,” around the margin and the word “Texas” between the points of the star in the seal. A licensed state land surveyor shall attest with the seal all official acts authorized under law. An act, paper, or map of a licensed state land surveyor may not be filed in the county records of the General Land Office unless it is certified to under the surveyor’s seal.
(d) A registration holder or license holder may not affix the person’s name, seal, or certification to any plat, design, specification, or other professional surveying work that is prepared by a person who is not registered or licensed under this chapter unless the work is performed by an employee under the direct supervision of the registration holder or license holder.
(e) A registration holder or license holder may not allow a person who is not registered or licensed under this chapter to exert control over the end product of professional surveying work.
(f) If professional surveying is performed as a joint venture of an association of two or more firms, each firm shall use the seal of the surveyor having primary responsibility for the venture.