68BDeductions for previous injuries and pre-existing conditions—operation of sections 15, 16, 17 and 22

#### 68B Deductions for previous injuries and pre-existing conditions—operation of sections 15, 16, 17 and 22 68B Deductions for previous injuries and pre-existing conditions—operation of sections 15, 16, 17 and 22 > > (1) When determining the compensation payable in respect of permanent impairment for the purposes of the apportionment of liability under section 22, there is to be no deduction under section 323 of the 1998 Act for any proportion of the impairment that is due to an injury in respect of which liability is to be apportioned (but without affecting any deduction under that section for any proportion of the impairment that is due to any other injury or that is due to any pre-existing condition or abnormality). > > > (2) When determining the compensation payable by an employer in a case in which section 15 applies (disease of such a nature as to be contracted by a gradual process), section 323 of the 1998 Act applies to that compensation subject to the following— > > > > > (a) there is to be no deduction under section 323 of the 1998 Act for any proportion of the permanent impairment that is due to the worker’s employment in previous relevant employment (as defined in paragraph (b)) except any such proportion for which compensation under this Division (as in force at any time) or section 16 of the former Act has been paid or is payable, > > > > > (b) for the purposes of paragraph (a), previous relevant employment is employment to the nature of which the disease was due by a previous employer who is liable under section 15 to contribute in respect of the compensation being determined (or who would be so liable if the requirement to contribute were not limited to employers who employed the worker during a particular period), > > > > > (c) in the case of permanent impairment of the back, neck or pelvis, a reference in this subsection to previous relevant employment is limited to employment after the commencement of this Act. > > > (3) When determining the compensation payable by an employer in a case in which section 16 applies (an injury that consists in the aggravation, acceleration, exacerbation or deterioration of a disease), section 323 of the 1998 Act applies to that compensation subject to the following— > > > > > (a) there is to be no deduction under section 323 of the 1998 Act for any proportion of the impairment that is due to the worker’s employment in previous relevant employment (as defined in paragraph (b)) except any such proportion for which compensation under this Division (as in force at any time) or section 16 of the former Act has been paid or is payable, > > > > > (b) for the purposes of paragraph (a), previous relevant employment is employment that was a substantial contributing factor to the aggravation, acceleration, exacerbation or deterioration by a previous employer who is liable under section 16 to contribute in respect of the compensation being determined (or who would be so liable if the requirement to contribute were not limited to employers who employed the worker during a particular period), > > > > > (c) in the case of permanent impairment of the back, neck or pelvis, a reference in this subsection to previous relevant employment is limited to employment after the commencement of this Act. > > > (4) When determining the compensation payable by an employer in a case in which section 17 applies (loss or further loss of hearing), section 323 of the 1998 Act applies to that compensation subject to the following— > > > > > (a) there is to be no deduction under section 323 of the 1998 Act for any proportion of the impairment that is due to the worker’s employment in previous relevant employment (as defined in paragraph (b)) except any such proportion for which compensation under this Division (as in force at any time) or section 16 of the former Act has been paid or is payable, > > > > > (b) for the purposes of paragraph (a), previous relevant employment is employment to the nature of which the disease was due by a previous employer who is liable under section 17 to contribute in respect of the compensation being determined (or who would be so liable if the requirement to contribute were not limited to employers who employed the worker during a particular period). > > **s 68B:** Ins 1996 No 120, Sch 1.6 \[3\]. Am 2000 No 87, Sch 23.2 \[1\]. Subst 2001 No 61, Sch 3.1 \[16\].