new heading: 9902.20.21 Tetradecanedioic acid (CAS No. 821–38–5) (provided for in subheading 2917.19.70) Free No change No change On or before 12/31/2024 . 4218. Pentadecanedioic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.20.22 Pentadecanedioic acid (CAS No. 1460–18–0) (provided for in subheading 2917.19.70) Free No change No change On or before 12/31/2024 . 4219. Tridecanedioic acid Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.20.23 Tridecanedioic acid (CAS No. 505–52–2) (provided for in subheading 2917.19.70) Free No change No change On or before 12/31/2024 . 4220. Methyl 1-(methoxycarbonyl)cyclopropanecarboxylate (CPDM) Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.20.24 Dimethyl 1,1-cyclopropanedicarboxylate (CAS No. 6914–71–2) (provided for in subheading 2917.20.00) Free No change No change On or before 12/31/2024 . 4221. Calcium HHPA Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.20.25 Calcium (1S,2R)-cyclohexane-1,2-dicarboxylate (CAS No. 491589–22–1) (provided for in subheading 2917.20.00) Free No change No change On or before 12/31/2024 . 4222. Diethyl phthalate Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.20.26 Diethyl benzene-1,2-dicarboxylate (CAS No. 84–66–2) (provided for in subheading 2917.34.01) Free No change No change On or before 12/31/2024 . 4223. Ammonium lactate Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.20.27 Ammonium lactate (Azanium