Tex. Occupations Code § 1001.003

(a) In this section:

(1) "Design coordination" includes the review and coordination of technical submissions prepared by others, including the work of other professionals working with or under the direction of an engineer with professional regard for the ability of each professional involved in a multidisciplinary effort.

(2) "Engineering survey" includes any survey activity required to support the sound conception, planning, design, construction, maintenance, or operation of an engineered project. The term does not include the surveying of real property or other activity regulated under Chapter 1071.

(b) In this chapter, "practice of engineering" means the performance of or an offer or attempt to perform any public or private service or creative work, the adequate performance of which requires engineering education, training, and experience in applying special knowledge or judgment of the mathematical, physical, or engineering sciences to that service or creative work.

(c) The practice of engineering includes:

(1) consultation, investigation, evaluation, analysis, planning, engineering for program management, providing an expert engineering opinion or testimony, engineering for testing or evaluating materials for construction or other engineering use, and mapping;

(2) design, conceptual design, or conceptual design coordination of engineering works or systems;

(3) development or optimization of plans and specifications for engineering works or systems;

(4) planning the use or alteration of land or water or the design or analysis of works or systems for the use or alteration of land or water;

(5) responsible charge of engineering teaching or the teaching of engineering;

(6) performing an engineering survey or study;

(7) engineering for construction, alteration, or repair of real property;

(8) engineering for preparation of an operating or maintenance manual;

(9) engineering for review of the construction or installation of engineered works to monitor compliance with drawings or specifications;

(10) a service, design, analysis, or other work performed for a public or private entity in connection with a utility, structure, building, machine, equipment, process, system, work, project, or industrial or consumer product or equipment of a mechanical, electrical, electronic, chemical, hydraulic, pneumatic, geotechnical, or thermal nature;

(11) providing an engineering opinion or analysis related to a certificate of merit under Chapter 150, Civil Practice and Remedies Code; or

(12) any other professional service necessary for the planning, progress, or completion of an engineering service.