; (2) not later than 1 year after the date of enactment of this Act for an opinion issued on or after January 20, 1993; (3) not later than 2 years after the date of enactment of this Act for an opinion issued on or after January 20, 1981, and before or on January 19, 1993; (4) not later than 3 years after the date of enactment of this Act for an opinion issued on or after January 20, 1969, and before or on January 19, 1981; and (5) not later than 4 years after the date of enactment of this Act for all other opinions. (b) Exceptions and limitation on public availability of final OLC opinions (1) In general A final OLC opinion or part thereof may be withheld only to the extent— (A) information contained in the opinion was— (i) specifically authorized to be kept secret, under criteria established by an Executive order, in the interest of national defense or foreign policy; (ii) properly classified, including all procedural and marking requirements, pursuant to such Executive order; (iii) the Attorney General determines that the national defense or foreign policy interests protected outweigh the public’s interest in access to the information; and (iv) put through declassification review within the past two years; (B) information contained in the opinion relates to the appointment of a specific individual not confirmed to Federal office; (C) information contained in the opinion is specifically exempted from disclosure by statute (other than sections 552 and 552b of title 5, United States Code), if such statute— (i) requires that the material be withheld in such a manner as to leave no discretion on the issue; or (ii) establishes particular criteria for withholding or refers to particular types of material to be withheld; (D) information in the opinion includes trade secrets and commercial or financial information obtained from a person and privileged or confidential whose disclosure would likely cause substantial harm to the competitive position of the person from whom the information was obtained