(1) Social costs shall consist of those benefit costs defined as follows:

1. (a) Benefit costs of an individual will not be charged to a base-period employer, but will be considered social costs if the individual's separation from that employer occurred under any of the following circumstances:

   1. (i) the individual was discharged by the employer or voluntarily quit employment with the employer for disqualifying reasons, but subsequently requalified for benefits and actually received benefits;
   2. (ii) the individual received benefits following a quit which was not attributable to the employer;
   3. (iii) the individual received benefits following a discharge for nonperformance due to medical reasons;
   4. (iv) the individual received benefits while attending the first week of mandatory apprenticeship training; or
   5. (v) the individual received benefits after quitting voluntarily to accompany or follow a spouse who is a member of the United States armed forces as described in Subsection 35A-4-405(1)(e).
2. (b) Social costs are benefit costs which are or have been charged to employers who have terminated coverage and are no longer liable for contributions, less the amount of contributions paid by such employers during the same time period.
3. (c) The difference between the benefit charges of all employers whose benefit ratio exceeds the maximum overall contribution rate and the amount determined by multiplying the taxable payroll of the same employers by the maximum overall contribution rate is a social cost.
4. (d) Benefit costs attributable to a concurrent base-period employer will not be charged to that employer if the individual's customary hours of work for that employer have not been reduced.
5. (e) Benefit costs incurred during the course of division-approved training which occurs after December 31, 1985, will not be charged to base-period employers.

6. (f) Benefit costs will not be charged to employers if such costs are attributable to:

   1. (i) the state's share of extended benefits;
   2. (ii) uncollectible benefit overpayments;
   3. (iii) the proportion of benefit costs of combined wage claims that are chargeable to Utah employers and are insufficient when separately considered for a monetary eligible claim under Utah law and which have been transferred to a paying state; and
   4. (iv) benefit costs attributable to wages used in a previous benefit year that are available for a second benefit year under Subsection 35A-4-401(2) because of a change in method of computing base-periods, overlapping base-periods, or for other reasons required by law.
7. (g) Any benefit costs that are not charged to an employer and not defined in this subsection are also social costs.