By: Duncan S.B. No. 1123 A BILL TO BE ENTITLED AN ACT relating to the standard of causation in claims involving mesothelioma caused by exposure to asbestos fibers. BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF TEXAS: SECTION 1. Chapter 90, Civil Practice and Remedies Code, is amended by adding Section 90.013 to read as follows: Sec. 90.013. STANDARD OF CAUSATION FOR CLAIMS INVOLVING MALIGNANT MESOTHELIOMA. (a) To recover damages for malignant mesothelioma allegedly caused by exposure to asbestos or asbestos containing products, the claimant must prove, among other elements of the claim, that a defendant's product or conduct was a substantial factor in causing the claimant's injury. (b) A defendant's product or conduct was a substantial factor in causing the exposed claimant's injury if the claimant presents qualitative proof that the asbestos exposure attributed to the defendant was substantial, and not merely de minimis, when considering: (1) the frequency of the exposure; (2) the regularity of the exposure; and (3) the proximity of the claimant to the source of the asbestos fibers. (c) A defendant who seeks a determination of the percentage of responsibility of another person under Section 33.003(a) must present qualitative proof in the same manner as is required of a claimant under Subsection (b). (d) A claimant or a defendant, including a defendant seeking a determination under Section 33.003(a), shall not be required to prove, or be prohibited from proving through otherwise admissible evidence, the numerical dose, approximate or otherwise, of asbestos fibers to which the claimant was exposed that are attributable to the defendant or another person under Section 33.003(a). (e) Nothing in this section modifies the general legal requirements for the admissibility of expert testimony with respect to the issue of causation. SECTION 2. Section 90.013, Civil Practice and Remedies Code, as added by this Act, applies to an action commenced on or after the effective date of this Act or pending on the effective date of this Act and in which the trial, or any new trial or retrial following motion, appeal, or otherwise, has not commenced on or before the effective date of this Act. An action commenced before the effective date of this Act in which trial has commenced on or before the effective date of this Act or in which there has been a final, unappealable disposition by order, judgment, voluntary dismissal, or otherwise is governed by the law applicable to the action immediately before the effective date of this Act, and that law is continued in effect for that purpose. SECTION 3. If any provision of this Act or its application to any person or circumstance is held invalid, the invalidity does not affect other provisions or applications of this Act that can be given effect without the invalid provision or application, and to this end the provisions of this Act are declared to be severable. SECTION 4. This Act takes effect immediately if it receives a vote of two-thirds of all the members elected to each house, as provided by Section 39, Article III, Texas Constitution. If this Act does not receive the vote necessary for immediate effect, this Act takes effect September 1, 2009.