[Code of Federal Regulations] [Title 40, Volume 1] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR49.10288] [Page 823] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY PART 49_TRIBAL CLEAN AIR ACT AUTHORITY--Table of Contents Subpart M_Implementation Plans for Tribes_Region X Sec. 49.10288 Permits to construct. Permits to construct are required for new major stationary sources and major modifications to existing major stationary sources pursuant to 40 CFR 52.21.