EPA is taking a direct final action to approve severable portions of a submittal from the State of Texas, through the Texas Commission on Environmental Quality (TCEQ), on September 25, 2003, to revise the Texas Major and Minor New Source Review (NSR) State Implementation Plan (SIP). EPA is approving the State's repeal of a paragraph of the SIP rule pertaining to Texas Major and Minor NSR SIP and to approve the consequent renumbering of the SIP rule's paragraphs. We also are approving the new replacement rule as meeting the Minor and Major NSR SIP requirements for voiding of permits. We are approving the portion of the revision that addresses the recodification of the provision relating to the granting of one 18- month extension of a permit as meeting the Minor and Major NSR SIP requirement for extensions of permits. The revision imposes requirements on permitees, requiring a review of the permit's underlying permit determinations before this SIP-approved extension can be granted. Finally, the revision provides for a second permit extension if certain conditions are met, including a health effects review. EPA is approving the new replacement rule for this second permit extension as meeting the Major and Minor NSR and NNSR SIP requirements. EPA finds that these changes to the Texas SIP comply with the Federal Clean Air Act (the Act or CAA) and EPA regulations, are consistent with EPA policies, and will improve air quality. This action is being proposed under section 110 and parts C and D of the Act.