Applicants shall indicate a primary branch of engineering under which experience has been gained. The board recognizes the following list of disciplines to assist in determining an applicant's competency although license holders are not designated as a specific discipline engineer nor are restricted to practice only in the branch designated. The board recognized branches are listed below. Those branches in which a National Council of Examiners for Engineering and Surveying (NCEES) examination is offered are followed by the acronym (NCEES).

1. (1) Aeronautical/aerospace;
2. (2) Agricultural (NCEES);
3. (3) Architectural (NCEES);
4. (4) Biomedical;
5. (5) Ceramic;
6. (6) Chemical (NCEES);
7. (7) Civil (NCEES);
8. (8) Control systems (NCEES);
9. (9) Electrical, electronic, computer, communications (NCEES);
10. (10) Engineering sciences/general;
11. (11) Environmental (NCEES);
12. (12) Fire protection (NCEES);
13. (13) Geological;
14. (14) Industrial (NCEES);
15. (15) Manufacturing;
16. (16) Mechanical (NCEES);
17. (17) Metallurgical (NCEES);
18. (18) Mining/mineral (NCEES);
19. (19) Naval architecture/marine engineering (NCEES);
20. (20) Nuclear (NCEES);
21. (21) Ocean;
22. (22) Petroleum (NCEES);
23. (23) Sanitary;
24. (24) Software;
25. (25) Structural (NCEES);
26. (26) Textile;
27. (27) Other.

Source Note:The provisions of this §133.13 adopted to be effective May 20, 2004, 29 TexReg 4873; amended to be effective February 24, 2005, 30 TexReg 846.