The Commission shall provide by rules and regulations for the procedures to be observed and the causes which justify the following, or other, personnel actions, demotions, suspensions, dismissals and layoffs subject to the two following paragraphs.
(a) The tenure of everyone holding an office, place, position or employment in the classified service shall be only during good behavior and efficient service; and any such person may be removed or discharged, suspended without pay or deprived of vacation privileges or other special privileges for incompetency, inefficiency, dishonesty, drunkenness, immoral conduct, insubordination, discourteous treatment to the public, neglect of duty, violation of the provisions of this Charter or the rules of the Commission, any other failure of good behavior or any other acts of misfeasance, malfeasance or nonfeasance in office.
(b) When it is necessary to lay off employees because of material change in duties or organization, or lack of work or funds, such layoffs shall be accomplished by suspending in numerical order commencing with the last person appointed until the necessary reduction has been accomplished. Employees so laid off shall have their names placed on a re-employment list, which list shall be the first source for filling appropriate vacancies as they occur. No names shall remain on a re-employment list for longer than two years, except by specific action of the Commission.