The WBF assessment is a payroll assessment. that employers of Oregon workers have paid. since 1966. From 1966 to 1994, subject Oregon. employers paid this assessment (then commonly. referred to as the âcents-per-day taxâ), along. with their workersÂ´ compensation insurance. premiums, to their insurance carrier.
Leg pain, numbness, and tingling causes. Leg pain, numbness, and tingling may be caused by a variety of conditions that can originate in the back or in the leg itself. These conditions include:
1. Sciatica is a Cause of a Numb Leg. Sciatica is a condition caused by irritation of the sciatic nerve and you'll feel the effects as numbness in one leg or foot, a shooting pain down the back of one thigh or in your buttock, and pain in the leg when you sit, stand, strain, cough and sneeze.