Section 17.28 - Protective order(a) A party or a prospective witness may file a motion for a protective order with respect to discovery sought by a party or with respect to the hearing, seeking to limit the availability or disclosure of evidence.(b) When issuing a protective order, the presiding officer may make any order which justice requires to protect a party or person from oppression or undue burden or expense, or to protect trade secrets or confidential commercial information, as defined in § 20.61 of this chapter, information the disclosure of which would constitute a clearly unwarranted invasion of personal privacy, or other information that would be withheld from public disclosure under 21 CFR part 20 . Such orders may include, but are not limited to, one or more of the following:(1) That the discovery not be had;(2) That the discovery may be had only on specified terms and conditions, including a designation of the time or place;(3) That the discovery may be had only through a method of discovery provided for by this part other than that requested;(4) That certain matters not be inquired into, or that the scope of discovery be limited to certain matters;(5) That the contents of discovery or evidence be sealed;(6) That the information not be disclosed to the public or be disclosed only in a designated way; or(7) That the parties simultaneously file specified documents or information enclosed in sealed envelopes to be opened as directed by the presiding officer.