39 CFR 3011.104: Standard for public disclosure of materials claimed to contain non-public information.

(a) In determining whether to publicly disclose materials claimed by the Postal Service to contain non-public information, the Commission shall balance the nature and extent of the likely commercial injury identified by the Postal Service against the public interest in maintaining the financial transparency of a government entity competing in commercial markets.

(b) In determining whether to publicly disclose materials in which the Commission determines any person other than the Postal Service has a proprietary interest, the Commission shall balance the interests of the parties consistent with the analysis undertaken by a federal court when applying the protective conditions appearing in Federal Rule of Civil Procedure 26(c).