19 CFR § 113.42
Time period for production of documents
July 16, 2020
Except when another period is fixed by law or regulations, any document for the production of which a bond or stipulation is given must be delivered within 120 days from the date of notice from CBP requesting such document, or within any extension of such time which may be granted pursuant to §133.43(a). If the period ends on a Saturday, Sunday, or holiday, delivery on the next business day will be accepted as timely.
[T.D. 85-167, 50 FR 40363, Oct. 3, 1985, as amended by CBP Dec. 15-15, 80 FR 70167, Nov. 13, 2015]