This document approves revisions to Texas Air Control Board (TACB) General Rules (31 TAC Chapter 101) and Regulation VI (31 TAC Chapter 116), ``Control of Air Pollution by Permits for New Construction or Modification'' of the Texas State Implementation Plan (SIP). The revisions approved herein include New Source Review (NSR) definitions and provisions for permitting in nonattainment areas as required by the Clean Air Act (CAA), as amended in 1990. These 1990 CAA NSR provisions were submitted by the Governor on May 13, 1992, November 13, 1992, and August 31, 1993. This action also approves other provisions of the General Rules and Regulation VI which have been submitted and not yet acted upon by EPA. These revisions were submitted by the Governor of Texas to EPA on December 11, 1985, October 26, 1987, February 18, 1988, September 29, 1988, December 1, 1989, September 18, 1990, November 5, 1991, May 13, 1992, November 13, 1992, and August 31, 1993. With the exception of the 1990 CAA NSR provisions, none of the other revisions being acted upon in this document were required by EPA.