Sec. 1053.003. LIMITATION ON INTERIOR DESIGNERS. Registration under this chapter does not authorize an interior designer to: (1) plan or design architectural interior construction; (2) engineer a building system, including a structural, electrical, plumbing, heating, ventilating, air-conditioning, or mechanical system; (3) engage in the practice of engineering as described in Chapter 1001; or (4) engage in the practice of architecture as described in Chapter 1051. Added by Acts 2001, 77th Leg., ch. 1421, Sec. 1, eff. June 1, 2003. SUBCHAPTER B. BOARD POWERS AND DUTIES