Section 552.1 - Affixing stamps and marking products for export; issuance of export certificates; clearance of vessels and transportation(a) The manner of affixing stamps and marking products for export is that prescribed in § 322.1(a) of this chapter.(b) The requirements for the issuance of export certificates are as prescribed in § 322.2 of this chapter.(c) The requirements for clearing vessels and other transportation vehicles are set out in § 322.4 of this chapter.80 FR 75616, Dec. 2, 2015