Persons claiming eligibility for disabled veteran's preference must submit to the employment office, on or before the application deadline date, a certification from the United States Veterans Administration or a military service department, dated within 1 year, which certifies the present existence of a service related disability of 10% or more, or other acceptable proof of such disability as a result of his/her military service. Six years of full-time, paid professional public, management, and/or government accounting/auditing experience, including two years of full-time, paid experience supervising a professional accounting and/or auditing staff responsible for public, management, and/or government accounting/auditing and related fiscal work.