IMPACT Bonus. Effective for the first pay period on or after October 1st, the District of Columbia Public Schools will provide an annual, non-pensionable bonus to any employee covered by this Agreement who receives a Highly Effective rating for the preceding school year. This bonus shall be in an amount not to exceed thirty thousand dollars ($30,000) per year for Principals, fifteen thousand dollars ($15,000) per year for Assistant Principals. CSO members who are not Assistant Principals or Principals are eligible for seven thousand five hundred dollars ($7,500) based on reaching Highly effective in IMPACT or Highly effective in any Central Services evaluation.