https://fas.org/programs/bio/chemweapons/cwconvention/ExecutiveRes75.html

(23) ADDITIONS TO THE ANNEX ON CHEMICALS -

(A) PRESIDENTIAL NOTIFICATION- Not later than 10 days after the Director-General of the Technical Secretariat communicates information to all States Parties pursuant to Article XV(5)(a) of a proposal for the addition of a chemicalor biological substance to a schedule of the Annex on Chemicals , the President shall notify the Committee on Foreign Relations of the Senate of the proposed addition.

(B) PRESIDENTIAL REPORT- Not later than 60 days after the Director-General of the Technical Secretariat communicates information of such a proposal pursuant to Article XV(5)(a) or not later than 30 days after a positive recommendation by the Executive Council pursuant to Article XV(5)(c), whichever is sooner, the President shall submit to the Committee on Foreign Relations of the Senate a report, in classified and unclassified form, detailing the likely impact of the proposed addition to the Annex on Chemicals . Such report shall include–

(i) an assessment of the likely impact on United States industry of the proposed addition of the chemical or biological substance to a schedule of the Annex on Chemicals ;

(ii) a description of the likely costs and benefits, if any, to United States national security of the proposed addition of such chemical or biological substance to a schedule of the Annex on Chemicals ; and

(iii) a detailed assessment of the effect of the proposed addition on United States obligations under the Verification Annex.

(C) PRESIDENTIAL CONSULTATION- The President shall, after the submission of the notification required under subparagraph (A) and prior to any action on the proposal by the Executive Council under Article XV(5)(c), consult promptly with the Senate as to whether the United States should object to the proposed addition of a chemical or biological substance pursuant to Article XV(5)(c).