510.9—Motions to modify, limit, or quash process.

(a) (1) Any person, sole proprietorship, partnership, corporation, or other entity served with a subpoena issued under § 510.4 may file with the Deputy Administrator a motion to modify, limit, or quash that subpoena. If there is no Deputy Administrator, or the Deputy Administrator is not available, such motions shall be filed with and decided by the Associate Administrator for Administration. A motion to modify, limit, or quash must be filed not later than 15 days after the service of the process or five days before the return date specified in the process, whichever is earlier, except that, if the process is served within five days of its return date, such motion may be filed at any time before the return date. Any motion must set forth the grounds and theories of why and how the party believes the process should be modified, limited, or quashed and must contain all facts and arguments which support those grounds and theories.