(a) With respect to an asbestos or silica action not barred by limitations as of this article's effective date, an exposed person's cause of action shall not accrue, nor shall the running of limitations commence, prior to the earlier of the date:
(1) The exposed person received a medical diagnosis of an asbestos-related impairment or silica-related impairment;
(2) The exposed person discovered facts that would have led a reasonable person to obtain a medical diagnosis with respect to the existence of an asbestos-related impairment or silica-related impairment; or
(3) The date of death of the exposed person having an asbestos-related or silica-related impairment.
(b) Nothing in this section shall be construed to revive or extend limitations with respect to any claim for asbestos-related impairment or silica-related impairment that was otherwise time-barred on the effective date of this article.
(c) Nothing in this section shall be construed so as to adversely affect, impair, limit, modify, or nullify any settlement or other agreements with respect to an asbestos or silica action entered into prior to the effective date of this article.
(d) An asbestos or silica action arising out of a nonmalignant condition shall be a distinct cause of action from an action for an asbestos-related or silica-related cancer. Where otherwise permitted under state law, no damages shall be awarded for fear or increased risk of future disease in an asbestos or silica action.