If, after 18 months on removal, a physician determines that an employee with still elevated blood lead levels may return to his/her former job status and the physician later determines that removal once again is necessary, the employee is again entitled to full MRP benefits until the physician determines he/she is again able to return to work; or, until after 18 months of the second removal have passed, a final medical determination is made that the employee is incapable of ever safely returning to his or her former job status.