Amend CSSB 1591, Section 5.123, on page 1, line 38, by adding a new subsection (f) to read as follows: (f) Any facility that emits air pollutants that was in existence on or before September 1, 1971 and is operating without a construction permit issued by the commission is not eligible for the type of exemption which the commission is authorized to grant under Subsection (a) of this section.