Amend CSHB 1900 (House committee printing) by adding the following appropriately numbered SECTIONS to the bill and renumbering the subsequent SECTIONS accordingly: SECTION ___. Subchapter B, Chapter 382, Health and Safety Code, is amended by adding Section 382.042 to read as follows: Sec. 382.042. EFFECTS SCREENING LEVELS; PENALTY. (a) The commission by rule shall adopt effects screening levels for air contaminants. Each effects screening level must: (1) be set in a manner that takes into consideration all acute and chronic health effects on a person due to exposure to an air contaminant; (2) be based in part on the health effects of: (A) the one-hour, eight-hour, or 24-hour exposure of a person to the air contaminant at the fence-line of an emission source; and (B) the lifetime exposure of a person to the air contaminant at the fence-line of an emission source; and (3) be set at a level that does not increase the risk of cancer in a person exposed to the air contaminant by greater than one chance in one million. (b) A person may not cause, suffer, allow, or permit the emission of any air contaminant or the performance of any activity that causes an effects screening level set by the commission to be exceeded. The commission by rule shall establish requirements for assessing a penalty or initiating an action for an injunction against a person who violates this subsection. (c) Not later than October 1, 2007, the commission shall adopt effects screening levels that comply with the requirements of Subsection (a). Until the commission adopts effects screening levels that comply with the requirements of Subsection (a), the effects screening levels adopted by the commission as of September 1, 2005, are interim standards for purposes of this section and Section 382.085. This subsection expires November 1, 2007. SECTION ___. Section 382.042, Health and Safety Code, as added by this Act, applies to any violation of an effects screening level set by the commission that occurs on or after the effective date of this Act. A violation of an effects screening level that occurs before the effective date of this Act is governed by the law in effect when the violation occurs, and the former law is continued in effect for that purpose.