19 C.F.R. § 12.121
Link to an amendment published at 81 FR 94985, Dec. 27, 2016.
(a) Chemical substances in bulk or mixtures - (1) Certification required. The importer of a chemical substance imported in bulk or as part of a mixture, or the authorized agent of such an importer, must certify either that the chemical shipment is subject to TSCA and complies with all applicable rules and orders thereunder, or that the chemical shipment is not subject to TSCA, by signing and filing with Customs one of the following statements:
I certify that all chemical substances in this shipment comply with all applicable rules or orders under TSCA and that I am not offering a chemical substance for entry in violation of TSCA or any applicable rule or order thereunder. I certify that all chemical substances in this shipment are not subject to TSCA.
(2) Filing of certification - (i) General. The appropriate certification required under paragraph (a)(1) of this section must be filed with the director of the port of entry before release of the shipment and, except when a blanket certification is on file as provided for in paragraph (a)(2)(ii) of this section, must appear as a typed or stamped statement:
(ii) Blanket certifications. A Center director may, in his discretion, approve an importer's use of a “blanket” certification, in lieu of filing a separate certification for each chemical shipment, for any chemical shipment that conforms to a product description provided to Customs pursuant to paragraph (a)(2)(ii)(A) of this section. In approving the use of a “blanket” certification, the Center director should consider the reliability of the importer and Customs broker. Approval and use of a “blanket” certification will be subject to the following conditions:
[T.D. 00-13, 65 FR 10704, Feb. 29, 2000, as amended by CBP Dec. 16-26, 81 FR 93014, Dec. 20, 2016]