(a) The employer shall only be liable for the percentage of permanent disability directly caused by the injury arising out of and occurring in the course of employment.

(b) If the applicant has received a prior award of permanent disability, it shall be conclusively presumed that the prior permanent disability exists at the time of any subsequent industrial injury. This presumption is a presumption affecting the burden of proof.

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Terms Used In California Labor Code 4664

  • employer: means :

    California Labor Code 3300

  • injury: as used in this division , includes cancer, including leukemia, that develops or manifests itself during a period in which any member described in subdivision (a) is in the service of the department or unit, if the member demonstrates that he or she was exposed, while in the service of the department or unit, to a known carcinogen as defined by the International Agency for Research on Cancer, or as defined by the director. See California Labor Code 3212.1

(c) (1) The accumulation of all permanent disability awards issued with respect to any one region of the body in favor of one individual employee shall not exceed 100 percent over the employee’s lifetime unless the employee’s injury or illness is conclusively presumed to be total in character pursuant to Section 4662. As used in this section, the regions of the body are the following:

(A) Hearing.

(B) Vision.

(C) Mental and behavioral disorders.

(D) The spine.

(E) The upper extremities, including the shoulders.

(F) The lower extremities, including the hip joints.

(G) The head, face, cardiovascular system, respiratory system, and all other systems or regions of the body not listed in subparagraphs (A) to (F), inclusive.

(2) Nothing in this section shall be construed to permit the permanent disability rating for each individual injury sustained by an employee arising from the same industrial accident, when added together, from exceeding 100 percent.

(Added by Stats. 2004, Ch. 34, Sec. 35. Effective April 19, 2004.)