This article shall apply to: (1) All public officers and officials of this state who hold state-wide offices and who are required by law to be bonded; and (2) Alleged acts of omission or commission which occurred prior to July 1, 1976. (Ga. L. 1975, p. 674, §§ 1, 4.) ARTICLE 4A INDEMNIFICATION OF PUBLIC SCHOOL TEACHERS AND EMPLOYEES