(1) The SPF relieves employers from cost-of-living increases on benefits paid to workers. The SPF assessment is paid quarterly at the same time a self-insurer submits its quarterly report.

(a) The SPF rate is determined annually for each calendar year.

(b) The total SPF assessment due each quarter is calculated by multiplying the SPF assessment rate by a self-insurer's worker hours during that quarter.

(c) One-half of the SPF assessment may be withheld from employee wages or salaries.

(d) Self-insurers may request reimbursement from the SPF quarterly, as authorized under Title 51 RCW, or they may deduct eligible SPF reimbursement amounts directly from their quarterly SPF assessment. If requesting reimbursement from the SPF quarterly, the self-insurer must use a form substantially similar to L&I form F207-011-000 or, if there is Social Security offset, L&I form F207-011-222.

(2) The asbestosis fund provides benefits to workers who have been diagnosed with an industrially related asbestosis condition during the often lengthy process of determining the liable employer. The asbestosis fund assessment is paid quarterly at the same time a self-insurer submits its quarterly report.

(a) The asbestosis fund assessment rate is determined annually for each calendar year.

(b) The total asbestosis fund assessment due each quarter is calculated by multiplying the asbestosis fund assessment rate by a self-insurer's worker hours during that quarter.

(c) One-half of the asbestosis fund assessment may be withheld from employee wages or salaries.