The term 'public information' means any information, regardless of form or format, that an agency discloses, disseminates, or makes available to the public.
Sources:
NIST SP 800-59
from
44 U.S.C., Sec. 3502 (12)
Any information, regardless of form or format that an agency discloses, disseminates, or makes available to the public.
Sources:
NIST SP 800-60 Vol. 1 Rev. 1
NIST SP 800-60 Vol. 2 Rev. 1