(a) "Public body" means any department of the State, a majority of directors or their representatives of departments within the executive branch of state government as outlined in § 1-30-10, any state board, commission, agency, and authority, any public or governmental body or political subdivision of the State, including counties, municipalities, townships, school districts, and special purpose districts, or any organization, corporation, or agency supported in whole or in part by public funds or expending public funds, including committees, subcommittees, advisory committees, and the like of any such body by whatever name known, and includes any quasi-governmental body of the State and its political subdivisions, including, without limitation, bodies such as the South Carolina Public Service Authority and the South Carolina State Ports Authority. Committees of health care facilities, which are subject to this chapter, for medical staff disciplinary proceedings, quality assurance, peer review, including the medical staff credentialing process, specific medical case review, and self-evaluation, are not public bodies for the purpose of this chapter.

(b) "Person" includes any individual, corporation, partnership, firm, organization or association.

(c) "Public record" includes all books, papers, maps, photographs, cards, tapes, recordings, or other documentary materials regardless of physical form or characteristics prepared, owned, used, in the possession of, or retained by a public body. Records such as income tax returns, medical records, hospital medical staff reports, scholastic records, adoption records, records related to registration, and circulation of library materials which contain names or other personally identifying details regarding the users of public, private, school, college, technical college, university, and state institutional libraries and library systems, supported in whole or in part by public funds or expending public funds, or records which reveal the identity of the library patron checking out or requesting an item from the library or using other library services, except nonidentifying administrative and statistical reports of registration and circulation, and other records which by law are required to be closed to the public are not considered to be made open to the public under the provisions of this act; nothing herein authorizes or requires the disclosure of those records where the public body, prior to January 20, 1987, by a favorable vote of three-fourths of the membership, taken after receipt of a written request, concluded that the public interest was best served by not disclosing them. Nothing herein authorizes or requires the disclosure of records of the Board of Financial Institutions pertaining to applications and surveys for charters and branches of banks and savings and loan associations or surveys and examinations of the institutions required to be made by law. Information relating to security plans and devices proposed, adopted, installed, or utilized by a public body, other than amounts expended for adoption, implementation, or installation of these plans and devices, is required to be closed to the public and is not considered to be made open to the public under the provisions of this act.

(d) "Meeting" means the convening of a quorum of the constituent membership of a public body, whether corporal or by means of electronic equipment, to discuss or act upon a matter over which the public body has supervision, control, jurisdiction or advisory power.

(e) "Quorum" unless otherwise defined by applicable law means a simple majority of the constituent membership of a public body.