6. (1) In this section and in section 7, “tax ratio”, with respect to a property, means the tax ratio established under section 308 of the Municipal Act, 2001 for the property class it is in; “weighted assessment” means, (a) with respect to property that is in a subclass to which section 313 of the Municipal Act, 2001 applies, the taxable assessment for the property, as reduced by the percentage reduction that applies with respect to that assessment under section 313 of the Municipal Act, 2001 and multiplied by the tax ratio of the property class that the property is in, and (b) in all other cases, the taxable assessment for a property multiplied by the tax ratio of the property class that the property is in.  O. Reg. 37/99, s. 3; O. Reg. 112/99, s. 1 (1); O. Reg. 355/02, s. 1 (1, 2). (2) For the purposes of this section, if the area of jurisdiction of a board includes territory without municipal organization, (a) the costs of social services attributable to the areas of the board comprised of municipalities are the actual costs of social services for all of those areas, including the costs of administration with respect to those costs; and (b) the costs of social services attributable to the areas of the board comprised of territory without municipal organization are the actual costs of those social services for that territory, including the costs of administration with respect to those costs.  O. Reg. 37/99, s. 3. (2.1) The costs of social services attributable to the areas of the board under subsection (2) include only those costs for which the board is responsible.  O. Reg. 112/99, s. 1 (2). (3) The attribution of costs between municipalities and territory without municipal organization in accordance with subsection (2) must be approved by the Director under the Ontario Works Act, 1997.  O. Reg. 37/99, s. 3. (4) Subject to subsections (5) and (6), the amount determined under clause (2) (a) shall be apportioned among the municipalities in the board’s district as follows: 1. When the assessment rolls of the municipalities in the district are returned to the clerks under section 36 of the Assessment Act, they shall also be provided to the board. 2. Each municipality shall provide the board with a copy of its by-law setting its tax ratios on or before the date it is required under section 308 of the Municipal Act, 2001 to make the by-law. 3. The board shall determine, for each municipality, the amount to be apportioned to the municipality in accordance with the following formula: A = B × (C ÷ D) where, A = the amount to be apportioned to the municipality, B = the amount determined under clause (2) (a), C = the sum of the weighted assessments for all of the properties in the municipality, D = the sum of the weighted assessments for all of the properties in all of the municipalities. O. Reg. 37/99, s. 3; O. Reg. 355/02, s. 1 (3). (5) The board may agree to apportion costs of social services in its district, including the costs of administration, in a way other than that provided in subsections (2) and (4) if, (a) a majority of the municipalities and members representing territory without municipal organization consent to that apportionment; and (b) those municipalities and members who have consented represent a majority of the electors in the board’s district.  O. Reg. 37/99, s. 3. (6) Each of the municipalities set out in an area of a board set out in the Schedule for that board and each of the members of that board representing territory without municipal organization is entitled to one vote under clause (5) (a).  O. Reg. 37/99, s. 3. (7) For the purposes of clause (5) (b), if two or more members of the board represent an area set out in the Schedule for the board that is comprised of territory without municipal organization, a member who represents the area shall be deemed to represent the total number of electors in the area divided by the total number of board members who represent the area.  O. Reg. 37/99, s. 3. (8) A resolution of the municipal council is required for a municipality to consent under subsection (5) and a signed consent of a member representing territory without municipal organization is required for the member to consent under subsection (5).  O. Reg. 37/99, s. 3. (8.1) Despite subsections (4) and (5), for the period beginning on December 11, 2017 and ending on December 31, 2019, the board shall use the method of cost apportionment for social services in its district that the board was using on December 10, 2017. O. Reg. 472/17, s. 2; O. Reg. 520/18, s. 1. (9) Each board whose area of jurisdiction includes territory without municipal organization shall inform the Minister responsible for each social service of the costs of that social service attributable to territory without municipal organization forthwith after determining those costs.  O. Reg. 37/99, s. 3.