1767 
† HR 4521 EAS 
SEC. 74557. LIGHT STABILIZERS FOR CONSTRUCTION PROD-
UCTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.46 
Hindered amine light stabi-
lizers for polypropylene, poly-
vinyl chloride and other simi-
lar goods, the foregoing con-
sisting of 1,6-hexanediamine, 
N,N′-bis(2,2,6,6-tetramethyl-4- 
piperidinyl)-, polymer with 
2,4,6-trichloro-1,3,5-triazine, 
reaction products with N- 
butyl-1-butanamine and N- 
butyl-2,2,6,6-tetramethyl-4- 
piperidinamine (CAS No. 
192268–64–7) (provided for in 
subheading 3812.39.90) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74558. LIGHT STABILIZER FOR PLASTICS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.47 
Light stabilizer for plastics 
containing a mixture of 
(2,2,6,6-tetramethy, 4- 
piperidinyl) polymer in 50 
percent polypropylene (CAS 
No. 69447–45–8); 2,2,6,6- 
tetramethylpiperidin-4-yl) 
octadecanoate (CAS No. 
167078–06–0) and 2,2,6,6- 
tetramethylpiperidin-4-ol 
(CAS No. 2403–88–5) (pro-
vided for in subheading 
3812.39.90) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74559. PREPARATIONS OF BIS(2,4–DICHLOROBENZOYL) 
PEROXIDE 50 PERCENT PASTE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1768 
† HR 4521 EAS 
‘‘ 
9902.24.48 
Preparations each used as an 
initiator (radical source) in 
the crosslinking of polymers 
consisting of bis(2,4- 
dichlorobenzoyl)peroxide (CAS 
No. 133–14–2) and silicone oil 
(provided for in subheading 
3815.90.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74560. DISTILLED TALL OILS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.49 
Distilled tall oils containing 
more than 2 percent by weight 
rosin (CAS No. 8002–26–4) 
(provided for in subheading 
3823.13.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74561. PYRIDINE, ALKYL DERIVATIVES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.50 
Pyridine, alkyl derivatives 
(CAS No. 68391–11–7) (pro-
vided for in subheading 
3824.99.28) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74562. POLYISOCYANATE CROSSLINKING AGENTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.51 
Polyisocyanate crosslinking 
agent tris(4- 
isocyanatophenoxy)- 
sulfanylidene-λ5-phosphane 
(CAS No. 4151–51–3) (pro-
vided for in subheading 
3824.99.28) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74563. BONDING AGENT MIXTURES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1769 
† HR 4521 EAS 
‘‘ 
9902.24.52 
Mixture of phenol;propane-1- 
sulfonic acid (CAS No. 70775– 
94–9) and 1,3-diisocyanato-2- 
methylbenzene;2,4- 
diisocyanato-1-methylbenzene 
(CAS No. 31370–61–3) (pro-
vided for in subheading 
3824.99.28) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74564. LIQUID, CHEMICALLY MODIFIED AMINE COM-
PLEX OF BORON TRIFLUORIDE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.53 
Liquid, chemically modified 
amine complex of 
(benzylamine)trifluoroboron 
(CAS No. 696–99–1) (provided 
for in subheading 3824.99.28) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74565. PHTHALOCYANINE DERIVATIVE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.54 
1-Octadecanaminium, N,N-di-
methyl-N-octadecyl-, (Sp-4-2)- 
[29H,31H-phthalocyanine-2- 
sulfonato(3-)-κN29, κN30, 
κN31, κN32]cuprate(1-) (CAS 
No. 70750–63–9) (provided for 
in subheading 3824.99.28) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74566. MIXTURES OF COCAMIDOPROPYL BETAINE, GLY-
COL DISTEARATE, LAURETH-4, AND WATER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1770 
† HR 4521 EAS 
‘‘ 
9902.24.55 
Mixtures of 2-[3- 
(dodecanoylamino)propyl- 
dimethylazaniumyl]acetate 
(Cocamidopropyl betaine) 
(CAS No. 61789–40–0); fatty 
acids, C16–18, esters with 
ethylene glycol (glycol 
distearate) (CAS No. 91031– 
31–1); alcohols C12–14, 
ethoxylated (Laureth-4) (CAS 
No. 68439–50–9) and oxidane 
(water) (CAS No. 7732–18–5) 
(provided for in subheading 
3824.99.41) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74567. MIXTURES OF TALL OIL MONO-, DI-, AND 
TRIGLYCERIDES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.56 
Mixtures of tall oil mono-, di-, 
and triglycerides of a kind 
used for fuel additives (CAS 
No. 97722–02–6) (provided for 
in subheading 3824.99.41) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74568. TALLOW-BIS(2-HYDROXYETHYL) AMINES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.57 
Mixtures of fatty substances of 
animal origin containing 50 
percent by weight of 2-(2- 
hydroxyethylamino)ethanol on 
a polyethylene carrier (pro-
vided for in subheading 
3824.99.41) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74569. ADDITIVE MIXTURES FOR METALWORKING 
FLUIDS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1771 
† HR 4521 EAS 
‘‘ 
9902.24.58 
Additive mixtures for metal-
working fluids of 2-[di-
meth-
yl(propyl)azaniumyl]ethyl-[2- 
[2-[2-[2-[2-[2-[2- 
methoxyethy-
l(dimethyl)azaniumyl]ethyl- 
dimethylazaniumy-
l]ethoxy]ethyl- 
dimethylazaniumyl]ethyl- 
dimethylazaniumy-
l]ethoxy]ethyl]- 
dimethylazanium;hexachloride 
(CAS No. 31075–24–8) (pro-
vided for in subheading 
3824.99.55) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74570. NAPHTHENIC ACIDS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.59 
Naphthenic acids composed of 
3-(3- 
ethylcyclopentyl)propanoic 
acid (CAS No. 1338–24–5) 
having an acidic fraction 
greater than 70 percent (pro-
vided for in subheading 
3824.99.75) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74571. HYDROXYTYROSOL POWDERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.60 
Mixtures containing 
(2R,3S,4R,5R)-2,3,4,5,6- 
pentahydroxyhexanal (CAS 
No. 9050–36–6 (less than 90 
percent by weight)) and 4-(2- 
hydroxyethyl)benzene-1,2-diol 
(CAS No. 10597–60–1 (less 
than 25 percent by weight)) 
(provided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74572. SECONDARY ALCOHOL ETHOXYLATES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1772 
† HR 4521 EAS 
‘‘ 
9902.24.61 
Mixtures of C12–14-secondary 
ethoxylated alcohols with an 
average of less than 5 ethylene 
oxide monomer units (CAS 
No. 84133–50–6) (provided for 
in subheading 3824.99.92) ......
2.8% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74573. ETHYLENE GLYCOL DIMERATE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.62 
Mixtures containing fatty acid 
polymer of a kind used as fuel 
additives (fatty acids, C18-un-
saturated, dimers, polymers 
with ethylene glycol) (CAS No. 
68082–28–0) (provided for in 
subheading 3824.99.92) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74574. TWO-PART LIQUID SILICONE KITS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.63 
Two-part liquid silicone kits 
(parts A and B) containing 58 
to 70 percent by weight alu-
minum oxide (CAS No. 1344– 
28–1) treated with tetrapropyl 
silicate (CAS No. 682–01–9), 
10 to 20 percent by weight eth-
enyl-[eth-
enyl(dimethyl)silyl]oxy- 
dimethylsilane (CAS No. 
68083–19–2), 5 to 15 percent 
by weight [di-
meth-
yl(trimethylsilyloxy)silyl]oxy- 
ethenyl-methyl- 
trimethylsilyloxysilane (CAS 
No. 67762–94–1), 5 to 15 per-
cent by weight iron oxide 
(CAS No. 1309–37–1), 1 to 3 
percent by weight 
bis(dimethylsilyloxy)- 
dimethylsilane (CAS No. 
70900–21–9) and 1 to 3 per-
cent by weight silica, 
[(ethenyldimethylsilyl)oxy]- 
and [(trimethylsilyl)oxy]- 
modified (CAS No. 68988–89– 
6) (provided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1773 
† HR 4521 EAS 
SEC. 74575. HYDROPHOBIC PRECIPITATED SILICA. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.64 
Siloxanes and silicones, di- 
methyl, reaction products with 
silica (CAS No. 67762–90–7) 
(provided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74576. 
SILANE, 
TRIMETHOXYOCTYL-, 
HYDROLYSIS 
PRODUCTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.65 
Dioxosilane; 
trimethoxy(octyl)silane (CAS 
No. 92797–60–9) (provided for 
in subheading 3824.99.92) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74577. 
1,1,1-TRIMETHYL-N- 
(TRIMETHYLSILYL)SILANAMINE HYDROLYSIS 
PRODUCTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.66 
1,1,1-Trimethyl-N- 
(trimethylsilyl)silanamine hy-
drolysis products with silica 
and 3-(triethoxysilyl)-1- 
propanamine (CAS No. 
199876–44–3) (provided for in 
subheading 3824.99.92) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74578. WATERBORNE EPOXY CURING AGENTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1774 
† HR 4521 EAS 
‘‘ 
9902.24.67 
Waterborne epoxy curing 
agents based on cycloaliphatic 
amine technology containing 
(3-aminimethyl-3,5,5- 
trimethylcyclohexylamine) 
(CAS No. 285513–2) (provided 
for in subheading 3824.99.92) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74579. PREPARATIONS BASED ON 1-PHENYLICOSANE- 
1,3-DIONE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.68 
Preparations based on 1- 
phenylicosane-1,3-dione (CAS 
No. 58446–52–9) (provided for 
in subheading 3824.99.92) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74580. MIXTURES OF 2-MERCAPTOPROPIONIC ACID, 
METHYL ESTER, O-ETHYL DITHIOCARBONATE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.69 
Mixtures of methyl 2- 
ethoxycarbothioylsulfanylprop-
anoate (CAS No. 351491–23– 
1); heptane (CAS No. 142–82– 
5) and methanedithione (CAS 
No. 75–15–0) (provided for in 
subheading 3824.99.92) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74581. EPOXY CURING AGENTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.70 
Epoxy curing agent mixtures 
of linseed oil polymer with 
bisphenol A, bisphenol A 
diglycidyl ether, 
diethylenetriamine, formalde-
hyde, glycidyl phenyl ether 
and pentaethylenehexamine 
(CAS No. 68915–81–1) (pro-
vided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1775 
† HR 4521 EAS 
SEC. 74582. ALIPHATIC AMINE CURING AGENTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.71 
[3- 
(Aminomethy-
l)phenyl]methanamine (CAS 
No. 1477–55–0) (provided for 
in subheading 3824.99.92) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74583. NON-HALOGENATED FLAME RETARDANTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.72 
Non-halogenated flame 
retardants based on organic 
phosphinates alu-
minum;diethylphosphinate 
(CAS No. 225789–38–8) phos-
phonic acid, aluminum salt 
(3:2) (CAS No. 56287–23–1) 
(provided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74584. LIGAPHOB N 90. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.73 
Fatty acids, C16–18 and C18– 
unsaturated, sodium salts 
(CAS No. 68424–26–0) (pro-
vided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74585. ORGANOMODIFIED SILOXANE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1776 
† HR 4521 EAS 
‘‘ 
9902.24.74 
Mixtures of poly[oxy(methyl- 
1,2-ethanediyl)], α-butyl-ω- 
hydroxy- (CAS No. 9003–13– 
8); polysiloxanes, di-Me, hy-
droxy-terminated, ethoxylated 
propoxylated (CAS No. 
64365–23–7); and oxirane, 2- 
methyl-, polymer with oxirane 
(CAS No. 9003–11–6) (pro-
vided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74586. 
METHYL 
PALMITATE-STEARATE, 
HYDRO-
GENATED. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.75 
Fatty acids, C16–18, methyl 
esters (methyl palmitate-stea-
rate, hydrogenated) (CAS No. 
85586–21–6) (provided for in 
subheading 3824.99.92) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74587. OLFINE E1010. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.76 
Mixtures of ethane-1,2- 
diol;2,4,7,9-tetramethyldec-5- 
yne-4,7-diol (CAS No. 9014– 
85–1) (provided for in sub-
heading 3824.99.92) .................
1% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74588. 
CERTAIN 
NON-HALOGENATED 
FLAME 
RETARDANTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.77 
Non-halogenated flame 
retardants based on organic 
phosphinates alu-
minum;diethylphosphinate 
(CAS No. 225789–38–8) phos-
phoric acid;1,3,5-triazine- 
2,4,6-triamine (CAS No. 
218768–84–4) (provided for in 
subheading 3824.99.92) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1777 
† HR 4521 EAS 
SEC. 74589. FLAME RETARDANTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.78 
Non-halogenated flame retard-
ant based on organic 
phosphinates alu-
minum;diethylphosphinate 
(CAS No. 225789–38–8) phos-
phoric acid;1,3,5-triazine- 
2,4,6-triamine (CAS No. 
218768–84–4) boron zinc oxide 
(CAS No. 12767–90–7) (pro-
vided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74590. 
PREPARATIONS 
BASED 
ON 
ACETYL 
HEXAPEPTIDE-8 AND PENTAPEPTIDE-18. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.79 
Mixtures of propane-1,2,3-triol 
(CAS No. 56–81–5); (4S)-4- 
acetamido-5-[[(2S)-1-[[(2S)-1- 
[[(2S)-5-amino-1-[[(2S)-1- 
[[(2S)-1-amino-5- 
(diaminomethylideneamino)-1- 
oxopentan-2-yl]amino]-5- 
(diaminomethylideneamino)-1- 
oxopentan-2-yl]amino]-1,5- 
dioxopentan-2-yl]amino]-4- 
methylsulfanyl-1-oxobutan-2- 
yl]amino]-4-carboxy-1- 
oxobutan-2-yl]amino]-5- 
oxopentanoic acid (CAS No. 
616204–22–9); L-tyrosyl-D- 
alanylglycyl-L-phenylalanyl- 
L-leucine (CAS No. 64963–01– 
5); 2-hydroxypropane-1,2,3- 
tricarboxylic acid hydrate 
(CAS No. 5949–29–1); octane- 
1,2-diol (CAS No. 1117-86-8) 
and water (CAS No. 7732–18– 
5) (provided for in subheading 
3824.99.92) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74591. LITHIUM SILICON OXIDE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1778 
† HR 4521 EAS 
‘‘ 
9902.24.80 
Lithium poly-silicate (lithium 
silicon oxide) in dark gray 
powdered form (CAS No. 
12627–14–4) (provided for in 
subheading 3824.99.92) ...........
3.9% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74592. BRANCHED OLEFIN FROM PROPYLENE POLYM-
ERIZATION. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.81 
Branched olefin from pro-
pylene polymerization (12- 
[(2S,3R)-3-octyloxiran-2- 
yl]dodecanoic acid) (CAS No. 
9003–07–0) (provided for in 
subheading 3902.10.00), the 
foregoing other than poly-
propylene in pellet form, con-
taining 1 percent or more but 
not over 10 percent by weight 
of mineral filler (talc) and 10 
percent or more but not over 
30 percent by weight of carbon 
powder ......................................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74593. POLYPROPYLENE PELLETS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.82 
Polypropylene in pellet form, 
containing 1 percent or more 
but not over 10 percent by 
weight of mineral filler (talc) 
and 10 percent or more but 
not over 30 percent by weight 
of carbon powder (CAS No. 
9003–07–0) (provided for in 
subheading 3902.10.00) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74594. PROPYLENE-ETHYLENE COPOLYMER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1779 
† HR 4521 EAS 
‘‘ 
9902.24.83 
Poly(propylene-co-ethylene) 
(CAS No. 9010–79–1) (pro-
vided for in subheading 
3902.30.00), the foregoing 
other than ethylene-propylene 
copolymers containing 50 to 
75 percent by weight of pro-
pylene ........................................
4.9% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74595. ETHYLENE-PROPYLENE COPOLYMERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.84 
Ethylene-propylene copoly-
mers, containing 50 to 75 per-
cent by weight of propylene 
(CAS No. 9010–79–1) (pro-
vided for in subheading 
3902.30.00) ...............................
3.3% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74596. BENZENE ALKYLATED WITH POLYPROPYLENE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.85 
Benzene, polypropylene de-
rivatives (CAS No. 68081–77– 
6) (provided for in subheading 
3902.90.00) ...............................
1.3% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74597. CHLORINATED POLYOLEFIN. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.86 
Chlorinated polyolefin (1- 
butene, polymer with ethene 
and 1-propene, chloro- and 
tetrahydro-2,5-dioxo-3-furanyl- 
terminated) (CAS No. 
560096–07–3) (provided for in 
subheading 3902.90.00) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74598. ADSORBENT RESIN. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1780 
† HR 4521 EAS 
‘‘ 
9902.24.87 
Poly(divinylbenzene-co- 
ethylstyrene) (CAS No. 9043– 
77–0) (provided for in sub-
heading 3903.90.50) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74599. VINYL CHLORIDE-HYDROXYPROPYL ACRYLATE 
COPOLYMER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.88 
2-Hydroxypropyl prop-2- 
enoate (acrylate), oxiran-2- 
ylmethyl 2-methylprop-2- 
enoate (glycidyl methacrylate), 
vinyl chloride copolymer (CAS 
No. 164718–75–6) (provided 
for in subheading 3904.40.00) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74600. VINYL CHLORIDE ETHYLENE COPOLYMER WITH 
HYDROPHIC PROPERTIES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.89 
Mixtures containing by weight 
less than 70 percent of ethyl-
ene-vinyl chloride copolymer 
(CAS No. 25037–78–9) (pro-
vided for in subheading 
3904.40.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74601. FLUIDS WITH BOILING POINTS ABOVE 170 °C. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.90 
1-Propene, 1,1,2,3,3,3- 
hexafluoro-, oxidized, polym-
erized (CAS 69991–67–9) 
(provided for in subheading 
3904.69.50), with boiling point 
above 170 °C ............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1781 
† HR 4521 EAS 
SEC. 
74602. 
FORMULATIONS 
OF 
FUNCTIONALIZED 
PERFLUOROPOLYETHER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.91 
Ethene, 1,1,2,2-tetrafluoro-, 
oxidized, polymerized, reduced, 
fluorinated, ethyl esters, re-
duced (CAS No. 1573124–82– 
9) (provided for in subheading 
3904.69.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74603. PERFLUOROPOLYETHER-URETHANE ACRYLATE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.92 
Perfluoropolyether-urethane 
acrylate (2-propenoic acid, 2- 
hydroxyethyl ester, reaction 
products with 5-isocyanato-1- 
(isocyanatomethyl)-1,3,3- 
trimethylcyclohexane trimer 
and reduced Me esters of re-
duced polymerized, oxidized 
tetrafluoroethylene) (CAS No. 
918664–08–1) present in a 
quantity comprising 60 per-
cent or more but less than 70 
percent by weight, the fore-
going dissolved in 0.5 percent 
or more but less than 1 per-
cent by weight of propan-2-ol 
(isopropyl alcohol) (CAS No. 
67–63–0), 15 percent or more 
but less than 20 percent by 
weight of ethyl acetate (CAS 
No.141–78–6) and 10 percent 
or more but less than 15 per-
cent by weight of butyl acetate 
(CAS No.123–86–4) (provided 
for in subheading 3904.69.50) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74604. PVDF HOMOPOLYMER/PVDF/CTFE COPOLYMER 
MIXTURES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1782 
† HR 4521 EAS 
‘‘ 
9902.24.93 
Mixtures of ethene, 1,1- 
difluoro-, homopolymer (CAS 
No. 24937–79–9) and ethene, 
1-chloro-1,2,2-trifluoro-, poly-
mer with 1,1-difluoroethene 
(CAS No. 9010–75–7) (pro-
vided for in subheading 
3904.69.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74605. CHEMICALLY MODIFIED PVDF. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.94 
Chemically modified ethene, 
1,1-difluoro-, homopolymer 
(CAS No. 24937–79–9) (pro-
vided for in subheading 
3904.69.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74606. FLUOROPOLYMER, FLUOROETHYLENE-ALKYL 
VINYLETHER ALTERNATIVE COPOLYMERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.95 
Chlorotrifluoroethylene- 
cyclohexyl vinyl ether- 
hydroxybutyl vinyl ether co-
polymer in flake or powder 
form, having a glass transition 
temperature of 51 °C (CAS 
No. 89461–13–2) (provided for 
in subheading 3904.69.50) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74607. COPOLYMER OF VINYL ACETATE AND HIGHER 
VINYL ESTERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.96 
Mixtures containing 50 per-
cent by weight poly(vinyl ace-
tate-co-vinyl laurate) (CAS 
No. 26354–30–3) and 50 per-
cent by weight bis(2- 
ethylhexyl) adipate (CAS No. 
103–23–1) (provided for in 
subheading 3905.19.00) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1783 
† HR 4521 EAS 
SEC. 74608. FOOD-GRADE VINYL ACETATE COPOLYMER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.97 
Dodecanoic acid, ethenyl ester, 
polymer with ethenyl acetate 
(CAS No. 26354–30–3) (pro-
vided for in subheading 
3905.19.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74609. VINYL CHLORIDE ETHYLENE WITH ENHANCED 
PROPERTIES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.98 
Mixtures containing by weight 
less than 75 percent of ethyl-
ene-vinyl acetate-vinyl chlo-
ride copolymer (CAS No. 
25085–46–5) (provided for in 
subheading 3905.29.00) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74610. VINYL ACETATE ETHYLENE COPOLYMER WITH 
ENHANCED PROPERTIES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.24.99 
Mixtures containing not more 
than 75 percent by weight of 
poly(ethylene-co-ethenyl ace-
tate) (CAS No. 24937–78–8), 
other than in aqueous disper-
sion (provided for in sub-
heading 3905.29.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74611. 
FOOD-GRADE 
POLYVINYL 
ACETATE 
HOMOPOLYMERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1784 
† HR 4521 EAS 
‘‘ 
9902.25.01 
Dodecanoic acid, ethenyl ester, 
polymer with ethenyl acetate 
(CAS No. 26354–30–3) (pro-
vided for in subheading 
3905.29.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74612. ACRYLIC ACID/VINYLSULPHONATE RANDOM CO-
POLYMERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.02 
Acrylic acid-sodium 
vinylsulfonate copolymers, so-
dium persulfate initiated, re-
action product with 
tetrasodium vinylidene 
diphosphonic acid (CAS No. 
397256–50–7) (provided for in 
subheading 3905.91.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74613. 
POLY(METHYL 
METHACRYLATE) 
MICRO-
SPHERES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.03 
Poly(methyl methacrylate) 
granular or spherical micro- 
spheres, each with mean par-
ticle size of 1 to 25 μm (CAS 
No. 9011–14–7) (provided for 
in subheading 3906.10.00) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74614. 
METHYL 
METHACRYLATE 
CROSSPOLYMER 
MICROSPHERES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1785 
† HR 4521 EAS 
‘‘ 
9902.25.04 
Composites of methyl meth-
acrylate crosspolymer (methyl 
2-methylprop-2-enoate;2-(2- 
methylprop-2-enoyloxy)ethyl 2- 
methylprop-2-enoate) (CAS 
No. 25777–71–3), entirely 
spherical micro-spheres with 
mean particle size of 1 to 25 
μm and containing 7 to 10 
percent by weight of dicalcium 
phosphate (CAS No. 7757–93– 
9) (provided for in subheading 
3906.10.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74615. STYRENE ACRYLATE COPOLYMER WITH EN-
HANCED PROPERTIES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.05 
Mixtures containing less than 
65 percent by weight of butyl 
prop-2-enoate;styrene (CAS 
No. 25767–47–9) (provided for 
in subheading 3906.90.50) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74616. COPOLYMER FOR DENTAL USE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.06 
Reacted copolymer of itaconic 
and acrylic acids, containing 
by weight over 90 percent 2- 
propenoic acid polymer with 
methylenebutanedioic acid, 
and also containing ethyl ace-
tate and tetrahydrofuran 
(CAS No. 25948–33–8) (pro-
vided for in subheading 
3906.90.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74617. VINYL PHOSPHONIC ACID, ACRYLIC ACID CO-
POLYMER, 20 PERCENT SOLUTION IN WATER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1786 
† HR 4521 EAS 
‘‘ 
9902.25.07 
2-Propenoic acid, polymer 
with p-ethenylphosphonic acid, 
20 percent solution in water 
(CAS No. 27936–88–5) (pro-
vided for in subheading 
3906.90.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74618. POLYACRYLATE 33. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.08 
Mixtures of polyacrylate 33 
(methyl methacrylate, poly-
mers with ethyl acrylate, poly-
ethylene glycol methacrylate 
C16–22-alkyl ethers and poly-
ethylene-polypropylene glycol 
methacrylate 2-(6,6- 
dimethylbicyclo[3.1.1]hept-2- 
en-2-yl)ethyl ether) (CAS No. 
1204525–16–5) and alcohols, 
C10–16, ethoxylated, sulfates, 
ammonium salts (CAS No. 
67762–19–0) (provided for in 
subheading 3906.90.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74619. AA/AMPS COPOLYMER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.09 
Acrylic acid-2-acrylamide-2- 
methyl propanesulfonic acid 
copolymer (prop-2-enoic 
acid;2-(prop-2- 
enoylamino)butane-2-sulfonic 
acid) (CAS No. 40623–75–4) 
in granule form, with a par-
ticle size between 250 and 850 
μm (provided for in sub-
heading 3906.90.50) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74620. FLOCCULANT DRY POLYACRYLAMIDES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.10 
Flocculant dry 
polyacrylamides (prop-2- 
enamide) (CAS No. 9003–05– 
8) (provided for in subheading 
3906.90.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1787 
† HR 4521 EAS 
SEC. 74621. SORBITOL, PROPYLENE OXIDE, ETHYLENE 
OXIDE POLYMER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.11 
Oxirane, 2-methyl-, polymer 
with oxirane, ether with D- 
glucitol (6:1) (CAS No. 56449– 
05–9) (provided for in sub-
heading 3907.20.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74622. TRIMETHOXYSILYLPROPYLCARBAMATE-TERMI-
NATED POLYETHER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.12 
Poly[oxy(methyl-1,2- 
ethanediyl)], α-(((3- 
(trimethoxysily-
l)propyl)amino)carbonyl)-ω- 
((((3- 
(trimethoxysily-
l)propyl)amino)carbonyl)oxy)- 
(CAS No. 216597–12–5) (pro-
vided for in subheading 
3907.20.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74623. 
DIMETHOXY(METHYL) 
SILYLMETHYLCARBAMATE-TERMINATED 
POLYETHER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.13 
Poly(oxy(methyl-1,2- 
ethanediyl)), α- 
((((dimethoxymethylsilyl) 
methyl)amino)carbonyl)-ω- 
(((((dimethoxymethylsilyl) 
methyl)amino)carbonyl)oxy)- 
(CAS No. 611222–18–5) (pro-
vided for in subheading 
3907.20.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1788 
† HR 4521 EAS 
SEC. 74624. CURING AGENT IS USED IN TWO- OR THREE- 
PARTS EPOXY SYSTEMS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.14 
Polyoxypropylen glycol 
diamine ((3S,4S)-pyrrolidine- 
3,4-diol) (CAS No. 9046–10–0) 
(provided for in subheading 
3907.20.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74625. POLYETHYLENE GLYCOL 450. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.15 
Poly(oxy-1,2-ethanediyl),α- 
hydro-ω-hydroxy-ethane-1,2- 
diol, ethoxylated, PEG 450 
(CAS No. 25322–68–3) (pro-
vided for in subheading 
3907.20.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74626. MEDICINAL INTERMEDIATE FOR INVESTIGA-
TIONAL USE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.16 
Poly(oxy-1,2-ethandiyl), α- 
[[(2,5-dioxo-1-pyrrolidinyl) 
oxy]carbonyl]-ω-[[(2,5-dioxo- 
1-pyrrolinyl)oxy]carbonyl]oxy- 
(di-NHS PEG40K) (CAS No. 
122375–06–8) (provided for in 
subheading 3907.20.00) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74627. PEGCETACOPLAN. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1789 
† HR 4521 EAS 
‘‘ 
9902.25.17 
Poly(oxy-1,2-ethanediyl), α- 
hydro-ω-hydroxy-, 15,15′- 
diester with N-acetyl-L- 
isoleucyl-L-cysteinyl-L-valyl-1- 
methyl-L-tryptophyl-L- 
glutaminyl-L-α-aspartyl-L- 
tryptophylglycyl-L-alanyl-L- 
histidyl-L-arginyl-L-cysteinyl- 
L-threonyl-2-[2-(2- 
aminoethoxy)ethoxy]acetyl-N6- 
carboxy-L-lysinamide cyclic 
(2→12)-(disulfide) 
(Pegcetacoplan) (CAS No. 
2019171–69–6) (provided for 
in subheading 3907.20.00) ......
5.9% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74628. AQUEOUS SOLUTIONS OF CARBOXYLIC ACID-CO-
POLYMER-SALT IN WATER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.18 
Aqueous solutions containing 
by weight more than 35 per-
cent of 2,5-furandione, poly-
mer with α-[4- 
(ethenyloxy)butyl]-ω- 
hydroxypoly(oxy-1,2- 
ethanediyl), sodium salt (CAS 
No. 250591–55–0) (provided 
for in subheading 3907.20.00) 
3% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74629. AQUEOUS SOLUTIONS OF A MODIFIED POLYMER 
BEARING HYDROPHILIC AND HYDROPHOBIC 
GROUPS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.19 
Aqueous solutions containing 
by weight more than 40 per-
cent of 2,5-furandione, poly-
mer with ethenylbenzene, 
hydrolyzed, 3- 
(dimethylamino)propyl imide, 
imide with polyethylene-poly-
propylene glycol 2- 
aminopropyl me ether, 2,2′- 
(1,2-diazenediyl)bis(2- 
methylbutanenitrile)-initiated 
(CAS No. 1062609–13–5) 
(provided for in subheading 
3907.20.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1790 
† HR 4521 EAS 
SEC. 
74630. 
DIMETHYLAMINE/EPICHLOROHYDRIN/ETHYL-
ENEDIAMINE COPOLYMER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.20 
1,2-Ethanediamine, polymer 
with 2-(chloromethyl)oxirane 
and N-methylmethanamine 
(CAS No. 42751–79–1) (pro-
vided for in subheading 
3907.30.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74631. LINEAR HYDROXYL-TERMINATED ALIPHATIC 
POLYCARB DIOL. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.21 
Poly(dimethyl carbonate-co- 
1,6-hexanediol) (CAS No. 
101325–00–2) (provided for in 
subheading 3907.40.00) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74632. SHORT HOLLOW PET FIBERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.22 
Hollow fibers of poly(ethylene 
terephthalate) (CAS No. 
25038–59–9), having a vis-
cosity number of 78 ml/g or 
higher, each fiber measuring 
0.5 mm or more but not more 
than 5 mm in length (pro-
vided for in subheading 
3907.61.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74633. POLYTETRAHYDROFURAN. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.23 
Polytetrahydrofuran (CAS No. 
25190–06–1) (provided for in 
subheading 3907.99.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1791 
† HR 4521 EAS 
SEC. 74634. CRYSTALLINE POLYESTERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.24 
1,4-Benzenedicarboxylic acid, 
1,4-dimethyl ester, polymer 
with 1,4-butanediol and α- 
hydro-ω-hydroxypoly(oxy-1,4- 
butanediyl) (CAS No. 9078– 
71–1) (provided for in sub-
heading 3907.99.50) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74635. LIQUID CRYSTAL POLYMERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.25 
1,4-Benzenedicarboxylic acid, 
polymer with 1,4-butanediol 
and α-hydro-ω- 
hydroxypoly(oxy-1,4- 
butanediyl) (CAS No. 37282– 
12–5) (provided for in sub-
heading 3907.99.50) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74636. BRANCHED POLYESTERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.26 
1,3-Benzenedicarboxylic acid, 
polymer with 1,3-dihydro-1,3- 
dioxo-5- 
isobenzofurancarboxylic acid, 
1,4-dimethyl 1,4- 
benzenedicarboxylate, 2,2-di-
methyl-1,3-propanediol and 
1,2-ethanediol (CAS No. 
207346–22–3) (provided for in 
subheading 3907.99.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74637. HIGH MOLECULAR WEIGHT CO-POLYESTER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1792 
† HR 4521 EAS 
‘‘ 
9902.25.27 
1,4-Benzenedicarboxylic acid, 
1,4-dimethyl ester, polymer 
with 1,4-butanediol and 
tricyclodecanedimethanol 
(CAS No. 490017–22–6) (pro-
vided for in subheading 
3907.99.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74638. HIGH MOLECULAR WEIGHT CO-POLYESTER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.28 
1,3-Benzenedicarboxylic acid 
polymer with 1,4- 
benzenedicarboxylic acid, di-
methyl ester, 1,4- 
cyclohexanedimethanol, 2,2-di-
methyl-1,3-propanediol and 
1,2-ethanediol (CAS No. 
74239–60–4) (provided for in 
subheading 3907.99.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74639. POLYESTER-POLYAMIDE DISPERSANTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.29 
Dodecanoic acid, reaction 
products with ethylenimine-2- 
oxepanone polymer (CAS No. 
132434–99–2) (provided for in 
subheading 3907.99.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74640. NYLON-12 MICRO-SPHERES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.30 
Nylon-12, entirely spherical 
micro-spheres with mean par-
ticle size of 1 to 25 μm (CAS 
No. 24937–16–4) (provided for 
in subheading 3908.10.00) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74641. SHORT NYLON-66 FIBERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1793 
† HR 4521 EAS 
‘‘ 
9902.25.31 
Nylon 66 (CAS No. 32131–17– 
2) fiber, measuring 3.3 decitex 
or more but not more than 
22.2 decitex and having a 
fiber length each measuring 
0.5 mm or more but not over 2 
mm (provided for in sub-
heading 3908.10.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74642. SHORT NYLON 6 FIBERS, COLORED. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.32 
Nylon 6 (CAS No. 25038–54– 
4) fibers, colored with pig-
ments, measuring approxi-
mately 5.5 or more but not 
more than 22.2 decitex and 
having a fiber length each 
measuring 1 mm or more but 
not over 5 mm (provided for 
in subheading 3908.10.00) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74643. SHORT TRIANGULAR NYLON 6 FIBERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.33 
Triangular nylon 6 (CAS No. 
25038–54–4) fibers, measuring 
2 or more but not more than 5 
decitex and having a fiber 
length each measuring 0.5 mm 
or more but not over 2 mm 
(provided for in subheading 
3908.10.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74644. SHORT STAR-SHAPED NYLON 6 FIBERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.34 
Star-shaped nylon 6 (CAS No. 
25038–54–4) fibers, measuring 
50 or more but not more than 
200 decitex and having a fiber 
length each measuring 0.5 mm 
or more but not over 5 mm 
(provided for in subheading 
3908.10.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1794 
† HR 4521 EAS 
SEC. 74645. SHORT HEART-SHAPED NYLON 6 FIBERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.35 
Heart-shaped nylon 6 (CAS 
No. 25038–54–4) fibers, meas-
uring 150 decitex and having 
a fiber length each measuring 
0.5 mm or more but not over 2 
mm (provided for in sub-
heading 3908.10.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74646. PA510 POLYMER COMPOUNDS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.36 
Mixtures containing 
poly(imino-1,5- 
pentanediylimino(1,10-dioxo- 
1,10-decanediyl)) PA510 (CAS 
No. 105063–19–2) (provided 
for in subheading 3908.90.70) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74647. MXD6 POLYMER COMPOUNDS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.37 
Compounds in which 
hexanedioic acid, polymer 
with 1,3- 
benzenedimethanamine 
(MXD6) (CAS No. 25728–70– 
1) is the predominant polymer 
resin (provided for in sub-
heading 3908.90.70) .................
2.2% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74648. PA10T POLYMER COMPOUNDS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1795 
† HR 4521 EAS 
‘‘ 
9902.25.38 
Compounds in which 
poly(iminocarbonyl-1,4- 
phenylenecarbonylimino-1,10- 
decanediyl) (PA10T) (CAS 
No. 24938–74–7) is the pre-
dominant polymer resin (pro-
vided for in subheading 
3908.90.70) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74649. PA10T/10I POLYMER COMPOUNDS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.39 
Compounds in which 
poly(iminocarbonyl-1,4- 
phenylenecarbonylimino-1,10- 
decanediyl)-co-(iminocarbonyl- 
1,3-phenylenecarbonylimino- 
1,10-decanediyl) (PA10T/10I) 
(CAS No. 106413–15–4) is the 
predominant polymer resin 
(provided for in subheading 
3908.90.70) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74650. POLYURETHANE AQUEOUS RESINS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.40 
Butane-1,4-diol;1,6- 
diisocyanatohexan-
e;hexanedioic acid;5- 
isocyanato-1- 
(isocyanatomethyl)-1,3,3- 
trimethylcyclohexane (CAS No. 
107934–19–0) (provided for in 
subheading 3909.50.20) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74651. AQUEOUS RESIN. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.41 
Hexanedioic acid, polymer 
with 1,4-butanediol, 1,6- 
diisocyanatohexane, 1,6- 
hexanediol and 5-isocyanato-1- 
(isocyanatomethyl)-1,3,3- 
trimethylcyclohexane (CAS No. 
153640–62–1) (provided for in 
subheading 3909.50.20) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1796 
† HR 4521 EAS 
SEC. 74652. ALIPHATIC POLYISOCYANATE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.42 
1,2,3-Propanetriol, polymer 
with 2,4-diisocyanato-1- 
methylbenzene, 2-ethyl-2- 
(hydroxymethyl)-1,3- 
propanediol, methyloxirane 
and oxirane (CAS No. 
127821–00–5) (provided for in 
subheading 3909.50.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74653. 
IPDI 
AND 
HDI 
BASED 
ALIPHATIC 
POLYISOCYANATE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.43 
Poly[oxy(methyl-1,2- 
ethanediyl)], α-hydro-ω-hy-
droxy-, polymer with 1,6- 
diisocyanatohexane (CAS No. 
9048–90–2) and cyclohexane, 
5-isocyanato-1- 
(isocyanatomethyl)-1,3,3- 
trimethyl-, (CAS No. 53880– 
05–0) (provided for in sub-
heading 3909.50.50) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74654. 
HDI/TRIMETHYLOL 
HEXYLLACTONE 
CROSSPOLYMER MICRO-SPHERES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.44 
Hexamethylene diisocyanate 
(HDI)/trimethylol hexyllactone 
crosspolymer (1,6- 
diisocyanatohexane;2-ethyl-2- 
(hydroxymethyl)propane-1,3- 
diol;oxepan-2-one) (CAS No. 
129757–76–2), entirely spher-
ical micro-spheres with mean 
particle size of 1 to 25 μm and 
coated with 1 to 3 percent by 
weight of silica (CAS No. 
7631–86–9) (provided for in 
subheading 3909.50.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1797 
† HR 4521 EAS 
SEC. 74655. HDI/PPG/POLYCAPROLACTONE CROSSPOLYMER 
MICRO-SPHERES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.45 
2-Oxepanone, polymer with 
1,6-diisocyanatohexane, 2- 
ethyl-2-(hydroxymethyl)-1,3- 
propanediol and α-hydro-ω- 
hydroxy[poly[oxy(methyl-1,2- 
ethanediyl)]] ether with D-glu-
citol (6:1) (CAS No. 302791– 
95–3), entirely spherical 
micro-spheres with mean par-
ticle size of 3 to 25 μm (pro-
vided for in subheading 
3909.50.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74656. AROMATIC ISOCYANATE PREPOLYMER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.46 
Isocyanic acid, 
polymethylenepolyphenylene 
ester, polymer with 2- 
methyloxirane and oxirane 
(CAS No. 67423–05–6) (pro-
vided for in subheading 
3909.50.50) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74657. BLOCKED POLYISOCYANATE CONTAINING SOL-
VENT. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.47 
Phenol, 4,4′-(1- 
methylethylidene)bis-, polymer 
with 1,3- 
diisocyanatomethylbenzene, 
1,1′-methylenebis[4- 
isocyanatobenzene], 2- 
methyloxirane and 2- 
methyloxirane polymer with 
oxirane ether with 1,2,3- 
propanetriol (3:1), Me Et ke-
tone oxime-blocked (CAS No. 
1334421–42–9) (provided for 
in subheading 3909.50.50) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1798 
† HR 4521 EAS 
SEC. 74658. POLYISOCYANATE ADDUCT FOR POWDER COAT-
INGS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.48 
1,3-Bis((5-isocyanato-1,3,3- 
trimethylcyclohexyl)methyl)- 
1,3-diazetidine-2,4- 
dione;butane-1,4-diol (CAS No. 
72828–34–3) (provided for in 
subheading 3909.50.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74659. BLOCKED POLYISOCYANATE FOR USE IN CAN 
AND COIL APPLICATIONS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.49 
Isocyanato-1- 
(isocyanatomethyl)-1,3,3- 
trimethylcyclohexane 
(Isophorone diisocyanante), 
homopolymer, methyl ethyl ke-
tone oxime-blocked (CAS No. 
103170–26–9) (provided for in 
subheading 3909.50.50) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74660. POLYDIMETHYLSILOXANE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.50 
Polydimethylsiloxane (Di-
methyl- 
bis(trimethylsilyloxy)silane) 
(CAS No. 63148–62–9) (pro-
vided for in heading 
3910.00.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74661. SILICONE RESINS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1799 
† HR 4521 EAS 
‘‘ 
9902.25.51 
Siloxanes and silicones, di-Me, 
polymers with Me PH 
silsesquioxanes (CAS No. 
68440–81–3) (provided for in 
heading 3910.00.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74662. 
METHOXYFUNCTIONAL 
METHYL-PHENYL 
POLYSILOXANE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.52 
Siloxanes and silicones, di-Me, 
polymers with PH 
silsesquioxanes, butoxy- and 
methoxy-terminated (CAS No. 
104780–72–5) (provided for in 
heading 3910.00.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74663. HYDROGENPOLYSILOXANE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.53 
Dimethyl-[meth-
yl(trimethylsilyloxy)silyl]oxy- 
trimethylsilyloxysilane (CAS 
No. 68037–59–2) (provided for 
in heading 3910.00.00) ............
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74664. METHYL SILICONE RESINS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.54 
Siloxanes and silicones, di-Me, 
polymers with Me 
silsesquioxanes, ethoxy-termi-
nated (CAS No. 68554–66–5) 
(provided for in heading 
3910.00.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74665. TRIMETHYLSILOXYSILICATE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1800 
† HR 4521 EAS 
‘‘ 
9902.25.55 
Trihydrox-
y(trimethylsilyloxy)silane 
(CAS No. 56275–01–5) (pro-
vided for in heading 
3910.00.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74666. EPOXY FUNCTIONAL POLYDIMETHYLSILOXANE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.56 
Methoxy-methyl-[3-[3-(oxiran- 
2-yl)propoxy]propyl]- 
trimethylsilyloxysilane (CAS 
No. 68440–71–1) (provided for 
in heading 3910.00.00) ............
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74667. POLYMETHYLHYDROGENSILOXANE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.57 
Poly(methylhydrosiloxane) 
(CAS No. 63148–57–2) (pro-
vided for in heading 
3910.00.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74668. VINYL TERMINATED SILOXANES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.58 
Siloxanes and silicones, di-Me, 
vinyl group-terminated (eth-
enyl-[eth-
enyl(dimethyl)silyl]oxy- 
dimethylsilane) (CAS No. 
68083–19–2) (provided for in 
heading 3910.00.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74669. SILICONE HYBRID RESIN (SOLVENT FREE). 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1801 
† HR 4521 EAS 
‘‘ 
9902.25.59 
Mixtures containing 85 per-
cent or more by weight of 
silsesquioxanes, Me Ph, 
methoxy-terminated, polymers 
with epichlorohydrin, 4,4′-(1- 
methylethyliden-
e)bis[cyclohexanol] and 
trimethyl (CAS No. 349656– 
42–4) and 10 percent or less 
by weight cyclohexanol, 4,4′- 
(1-methylethylidene)bis-, poly-
mer with 2- 
(chloromethyl)oxirane (CAS 
No. 30583–72–3) (provided for 
in heading 3910.00.00) ............
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74670. 
HYDROGENATED 
POLYCYCLOPENTADIENE 
RESIN. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.60 
Hydrogenated 
polycyclopentadiene resin (1,3- 
Cyclopentadiene homopolymer, 
hydrogenated) (CAS No. 
68132–00–3) (provided for in 
subheading 3911.10.00) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74671. 
WATER 
DISPERSABLE 
HDI 
BASED 
POLYISOCYANATE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.61 
Hexane,1,6-diisocyanato-, 
homopolymer (CAS No. 
28182–81–2) and 
cyclohexane,5-isocyanato-1- 
(isocyanatomethyl)-1,3,3- 
trimethyl-,homopolymer (CAS 
No. 53880–05–0) (provided for 
in subheading 3911.90.25) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1802 
† HR 4521 EAS 
SEC. 74672. CYANATE ESTER RESINS FOR HIGH-END ELEC-
TRONIC, AEROSPACE, AND INDUSTRIAL AP-
PLICATIONS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.62 
Cyanic acid, C,C′-[(1- 
methylethylidene)di-4,1-phen-
ylene] ester, homopolymer 
(CAS No. 25722–66–1) (pro-
vided for in subheading 
3911.90.45) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74673. POLYETHYLENEIMINE, COMPONENT USED IN 
MANUFACTURING MEDICAL DEVICES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.63 
Polyethylenimine (CAS No. 
9002–98–6), of a kind used as 
a component for further man-
ufacturing into a finished 
medical device (provided for in 
subheading 3911.90.90) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74674. POLYHEXANIDE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.64 
Poly (hexamethylenebiguanide) 
hydrochloride (Polyhexanide) 
(CAS No. 32289–58–0) (pro-
vided for in subheading 
3911.90.90) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74675. ETHYLENE-NORBORNENE COPOLYMER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1803 
† HR 4521 EAS 
‘‘ 
9902.25.65 
Poly(ethylene-ran-(2- 
norbornene)), substantially 
amorphous, having a glass 
transition temperature less 
than 145 °C (CAS No. 26007– 
43–2) (provided for in sub-
heading 3911.90.90) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74676. CELLULOSE POWDER. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.66 
Cellulose entirely spherical 
micro-spheres, each with mean 
particle size of 1 to 25 μm 
(CAS No. 9004–34–6) (pro-
vided for in subheading 
3912.90.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74677. POLYMALTOTRIOSE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.67 
Poly[6)-α-D-glucopyranosyl- 
(1->4)-α-D-glucopyranosyl-(1- 
>4)-α-D-glucopyranosyl-(1- 
>] (Polymaltotriose) (CAS 
No. 9057–02–7) (provided for 
in subheading 3913.90.20) ......
1.3% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74678. CHITOSAN. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1804 
† HR 4521 EAS 
‘‘ 
9902.25.68 
Chitosan (methyl N- 
[(2S,3R,4R,5S,6R)-5- 
[(2S,3R,4R,5S,6R)-3-amino-5- 
[(2S,3R,4R,5S,6R)-3-amino-5- 
[(2S,3R,4R,5S,6R)-3-amino-5- 
[(2S,3R,4R,5S,6R)-3-amino-5- 
[(2S,3R,4R,5S,6R)-3-amino-5- 
[(2S,3R,4R,5S,6R)-3-amino- 
4,5-dihydroxy-6- 
(hydroxymethyl)oxan-2-yl]oxy- 
4-hydroxy-6- 
(hydroxymethyl)oxan-2-yl]oxy- 
4-hydroxy-6- 
(hydroxymethyl)oxan-2-yl]oxy- 
4-hydroxy-6- 
(hydroxymethyl)oxan-2-yl]oxy- 
4-hydroxy-6- 
(hydroxymethyl)oxan-2-yl]oxy- 
4-hydroxy-6- 
(hydroxymethyl)oxan-2-yl]oxy- 
2-[(2R,3S,4R,5R,6S)-5-amino- 
6-[(2R,3S,4R,5R,6R)-5-amino- 
4,6-dihydroxy-2- 
(hydroxymethyl)oxan-3-yl]oxy- 
4-hydroxy-2- 
(hydroxymethyl)oxan-3-yl]oxy- 
4-hydroxy-6- 
(hydroxymethyl)oxan-3- 
yl]carbamate) (CAS No. 9012– 
76–4) (provided for in sub-
heading 3913.90.20) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74679. PLASTIC DRINKING STRAWS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.69 
Drinking straws of plastics, 
each measuring 8 mm or more 
in outside diameter and 20 cm 
or more in length (provided 
for in subheading 3917.32.00) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74680. GARDEN HOSES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.70 
Garden hoses of plastics, con-
structed with a grade 304 
stainless steel interlocking spi-
ral band outer shell, flexible 
polyvinyl chloride (PVC) 
inner hose, having aluminum 
fittings with rubber grips, 
weighing not more than 2.8 
kg, the foregoing whether or 
not presented with nozzle (pro-
vided for in subheading 
3917.39.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1805 
† HR 4521 EAS 
SEC. 74681. PLASTIC FITTINGS OF PERFLUOROALKOXY. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.71 
Plastic fittings of 
perfluoroalkoxy (PFA), of a 
kind used principally with 
machines and apparatus for 
the manufacture of semi-
conductors and flat panel dis-
plays of heading 8486 (pro-
vided for in subheading 
3917.40.00, 3926.90.99 or 
3923.50.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74682. LOW DENSITY POLYETHYLENE (LDPE) SHEET-
ING. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.72 
Low density sheeting of poly-
ethylene, measuring in width 
3,810 mm, gauge 0.15 mm 
and length 2,000 meters, 
translucent solid with waxy 
color as presented (provided 
for in subheading 3920.10.00) 
3.1% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 
74683. 
BIAXIALLY 
ORIENTED 
DIELECTRIC 
POLY-
PROPYLENE FILM. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.73 
Biaxially oriented dielectric 
polypropylene film, produced 
from solvent-washed low ash 
content (less than 50 ppm) 
polymer resin (CAS No. 9003– 
07–0) (provided for in sub-
heading 3920.20.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1806 
† HR 4521 EAS 
SEC. 74684. BIAXIALLY ORIENTED POLYPROPYLENE (BOPP) 
CAPACITOR-GRADE FILM. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.74 
Transparent coextruded biax-
ially oriented polypropylene 
film, capacitor-grade, pre-
sented in rolls of a width not 
exceeding 790 mm and of a 
thickness not exceeding 15 μm 
(provided for in subheading 
3920.20.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74685. POLYESTER CAPACITOR-GRADE FILM. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.75 
Transparent coextruded biax-
ially oriented polyester film, 
capacitor-grade, presented in 
roll form, of a width not ex-
ceeding 790 mm and of a 
thickness not exceeding 15 μm 
(provided for in subheading 
3920.62.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74686. ACID FORM MEMBRANES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.76 
Membranes of short side chain 
(Poly(tetrafluoroethylene-co- 
perfluoro(3-oxa-4- 
pentenesulfonic acid)) (CAS 
No. 1163733–25–2) (provided 
for in subheading 3920.99.20) 
4.1% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74687. MELAMINE RESIN FOAM. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1807 
† HR 4521 EAS 
‘‘ 
9902.25.77 
Foam of thermoset melamine 
resin, measuring 1,250 mm or 
more in width, 500 mm in 
height and 1,300 mm or more 
but not more than 3,100 mm 
in length, with a density not 
less than 4 and not more than 
11 kg/m3 per EN ISO 845 
specimen size 250 mm3 (pro-
vided for in subheading 
3921.19.00) ...............................
5.4% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74688. INFANT BATHTUBS AND BASINS, OF PLASTICS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.78 
Infant bathtubs and wash-
basins of plastics, each meas-
uring not over 70 cm in 
length, 48 cm in width and 29 
cm in height (provided for in 
subheading 3922.10.00) ...........
3.4% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74689. BOXES, CASES, CRATES, AND SIMILAR ARTICLES 
OF PLASTICS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.79 
Boxes, cases, crates and simi-
lar articles of plastics (pro-
vided for in subheading 
3923.10.90), the foregoing spe-
cially shaped or fitted for the 
conveyance of lithography ma-
chines, apparatus or parts 
thereof for the manufacture of 
semiconductor devices or of 
electronic integrated circuits of 
subheading 8486.20.00 or 
8486.90.00 ................................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74690. NOZZLES, BLACK, OF POLYPROPYLENE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1808 
† HR 4521 EAS 
‘‘ 
9902.25.80 
Nozzles of polypropylene, black 
in color, each measuring 4.5 
mm in inside diameter, with 
an outer diameter of 29 mm 
and a height of 39.2 mm (pro-
vided for in subheading 
3923.10.90) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74691. TIP/CAP COMBINATIONS OF POLYETHYLENE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.81 
Tips of low density poly-
ethylene, each measuring 19.1 
mm in height, with outer di-
ameter of 18.4 mm, of a ca-
pacity of 20 ml and weighing 
not over 0.9 g; each such tip 
attached to a cap of high den-
sity polyethylene, measuring 
16.2 mm, with outer diameter 
of 18.4 mm and weighing not 
over 1.3 g (provided for in 
subheading 3923.10.90) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74692. BOTTLES MADE OF LDPE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.82 
Bottles of low density poly-
ethylene, each measuring 56 
mm in height, having an outer 
diameter of 27 mm, with a 
bottle neck having an outer di-
ameter of 16.2 mm, of a ca-
pacity of 20 ml, weighing not 
over 4 g (provided for in sub-
heading 3923.30.00) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74693. PLASTIC NASAL IRRIGATOR CAPS FOR NETI 
POTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.83 
Nasal irrigator caps of plas-
tics, designed for use on ce-
ramic neti pots (provided for 
in subheading 3923.50.00) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1809 
† HR 4521 EAS 
SEC. 74694. TOY CHARACTER BOTTLE TOPPERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.84 
Three-dimensional (3D) toy 
character bottle toppers of 
plastics, each consisting of a 
threaded bottle cap, a straw- 
like sipper and a 3D chil-
dren’s toy character from chil-
dren’s movies or television 
programs, having a diameter 
of at least 32 mm (provided 
for in subheading 3923.50.00) 
2.8% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74695. MELAMINE PLATTERS, OTHER THAN THOSE 
PRESENTED IN SETS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.85 
Melamine platters, other than 
those presented in sets (pro-
vided for in subheading 
3924.10.20) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74696. MELAMINE PLATES, OTHER THAN THOSE PRE-
SENTED IN SETS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.86 
Melamine plates, other than 
those presented in sets (pro-
vided for in subheading 
3924.10.20) ...............................
0.8% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74697. MELAMINE BOWLS NOT PRESENTED IN SETS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.87 
Melamine bowls, not presented 
in sets (provided for in sub-
heading 3924.10.20) .................
0.8% 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1810 
† HR 4521 EAS 
SEC. 74698. MELAMINE TRAYS NOT PRESENTED IN SETS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.88 
Melamine trays, the foregoing 
other than those presented in 
sets (provided for in sub-
heading 3924.10.30) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74699. PLASTIC MEASURING CUPS AND SPOONS IN 
SETS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.89 
Measuring cups, spoons, or 
combinations thereof, the fore-
going of plastics, designed for 
table or kitchen use to measure 
ingredients, such goods pre-
sented in sets each containing 
from 4 to 12 pieces (provided 
for in subheading 3924.10.40) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74700. LIQUID MEASURING CUPS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.90 
Household kitchen measuring 
tools, of plastics, designed to be 
used for liquid ingredients, 
such goods with measuring 
size not exceeding 1 liter (pro-
vided for in subheading 
3924.10.40) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74701. SELF-ANCHORING BEVERAGE CONTAINERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1811 
† HR 4521 EAS 
‘‘ 
9902.25.91 
Self-anchoring beverage con-
tainers of plastics, each with a 
base made from orange sili-
cone, such base measuring no 
more than 60.4 mm (provided 
for in subheading 3924.10.40) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74702. PVC INFANT BATHTUB MATS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.92 
Polyvinylchloride (PVC) in-
fant bathtub mats, whale- 
shaped, each with non-slip 
surface, drainage-allowing 
perforations and suction cups 
on the bottom surface, of a 
length less than 76.2 cm and 
not over 39.4 cm in width 
(provided for in subheading 
3924.90.10) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74703. REVERSIBLE PLAYMATS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.93 
Printed, cushioned mats, each 
with core of polyurethane foam 
and outer layer of thermo-
plastic polyurethane film, 
measuring approximately 
218.4 cm by 132.1 cm and 
11.5 mm in thickness when 
unrolled (provided for in sub-
heading 3924.90.10) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74704. CRAFT MATS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.94 
Craft mats of plastics, made of 
self-healing polyvinyl chloride 
designed to protect work sur-
faces and to withstand mul-
tiple cuts and scoring while 
providing linear and angular 
dimensioning guidelines for 
cutting projects (provided for 
in subheading 3924.90.56) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1812 
† HR 4521 EAS 
SEC. 74705. HANGERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.95 
Molded plastic hangers of a 
width not exceeding 6.35 mm, 
coated or covered with a vel-
vet-like, textile flocking mate-
rial and incorporating a metal 
hook (provided for in sub-
heading 3924.90.56) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74706. INFANT BATH RINSING CUPS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.96 
Infant bath rinsing cups, of 
polypropylene plastics, each 
with interior fins and with a 
soft thermoplastic rubber lip 
designed to keep water from 
infant’s forehead; not con-
taining bisphenol A (BPA), 
polyvinyl chloride (PVC) and 
phthalate (provided for in sub-
heading 3924.90.56) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74707. BATHTUB SPOUT COVERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.25.97 
Whale-shaped adjustable bath-
tub spout covers, of thermo-
plastic materials (provided for 
in subheading 3924.90.56) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74708. INFANT TEETHERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1814 
† HR 4521 EAS 
‘‘ 
9902.26.02 
Dispensers designed to contain 
and release pieces of disposable 
cutlery of plastics, manually 
operated, each dispenser with 
press lever single-dispensing 
operation and designed to hold 
banded cartridges of same- 
branded (only) disposable cut-
lery, such dispensers designed 
to be wall mounted (provided 
for in subheading 3925.90.00) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74712. EAR BULB SYRINGES OF CLEAR SILICONE. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.03 
Ear bulb syringes, each with 
tip and bulb of clear silicone 
and with polystyrene ring con-
nector (provided for in sub-
heading 3926.90.21) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74713. PVC INFLATABLE PILLOWS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.04 
Inflatable travel pillows of 
flexible polyvinyl chloride, the 
exterior of which may be 
flocked, each with a valve for 
inflation, such pillows meas-
uring between 60 cm and 70 
cm in length and 15 cm to 25 
cm in width and weighing be-
tween 150 g and 190 g, the 
foregoing presented with an 
attached nylon flat cord meas-
uring between 75 cm to 80 cm 
in length and 1 cm to 1.5 cm 
in width, and which may each 
have a cover of polyester (pro-
vided for in subheading 
3926.90.75) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74714. SELF-INFLATABLE QUEEN AIR MATTRESSES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1815 
† HR 4521 EAS 
‘‘ 
9902.26.05 
Pneumatic air mattresses of 
polyvinyl chloride, each with a 
flocked surface and built-in 
120 V electric pump, meas-
uring approximately 205.7 cm 
by 157.5 cm by 54.6 cm, 
weighing 11.3 kg and valued 
$34 or more but not over $40 
(provided for in subheading 
3926.90.75) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74715. PLASTIC CLIP FASTENERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.06 
Fasteners of nylon or of poly-
propylene, with a filament 
length of 2.5 mm or more but 
not over 127 mm, presented on 
clips each holding the quantity 
of 25, 50, 100 or 120 pieces, 
suitable for use in a mechan-
ical attaching device (provided 
for in subheading 3926.90.85) 
3.6% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74716. SELF-VENTING SPOUTS FOR DIESEL EXHAUST 
FLUID. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.07 
Self-venting spouts or nozzles, 
threaded for connection to 
plastic containers on one end 
and fitted for connection to 
diesel exhaust fluid (DEF) 
tanks of diesel motor vehicles 
on the other, the foregoing pre-
sented without the containers 
(provided for in subheading 
3926.90.99) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74717. PLASTIC PET CARRIERS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1816 
† HR 4521 EAS 
‘‘ 
9902.26.08 
Carrying cases of hard plas-
tics, each with handle and 
door of plastics and with no 
door of metal, the foregoing de-
signed for use for reptiles or 
amphibians and not for the 
housing or transport of mam-
mals, measuring not over 381 
mm on any side (provided for 
in subheading 3926.90.99) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74718. PLASTIC MIXING TIPS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.09 
Plastic mixing tips, each con-
sisting of a mixer housing, 
mixing elements and a retain-
ing ring, each designed for use 
as a disposable mixing tip for 
two-part chemistries in the 
dental industry (provided for 
in subheading 3926.90.99) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74719. CABLE TIES OF PLASTICS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.10 
Cable ties of nylon, measuring 
20 cm or more but not more 
than 61 cm in length, sold in 
packs each containing not over 
100 pieces and valued not over 
$1 per pack (provided for in 
subheading 3926.90.99) ...........
3.8% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74720. FLEXIBLE CAMERA MOUNTINGS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.11 
Camera mounts of plastics, 
each with an elongated, seg-
mented plastic neck composed 
of 6 to 8 ball joints, incor-
porating a base that clips into 
other types of mounts, engi-
neered to mount cameras of 
subheading 8525.80.40 (pro-
vided for in subheading 
3926.90.99) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1817 
† HR 4521 EAS 
SEC. 74721. THREE-PIECE CAMERA MOUNT SETS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.12 
Sets each containing three 
camera mounts of plastics, 
such mounts designed for cam-
eras of subheading 8525.80.40; 
with each set containing one 
mount incorporating an ad-
justable head-strap designed to 
encircle the forehead, one 
mount buoyant in water in-
corporating a handle designed 
to allow a user to grip with 
the hand and one mount in 
the form of a clip (provided 
for in subheading 3926.90.99) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74722. MAGNETIC SWIVEL CLIPS FOR CAMERAS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.13 
Camera mounts of plastics, de-
signed to hold cameras of sub-
heading 8525.80.40, each 
mount incorporating a clip 
and magnetic base, capable of 
rotating the camera 360 de-
grees on a plane (provided for 
in subheading 3926.90.99) ......
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74723. HELMET CAMERA MOUNTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.14 
Camera mounts of plastics, 
each designed to attach camera 
of subheading 8525.80.40 se-
curely onto the front or side of 
a helmet (provided for in sub-
heading 3926.90.99) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1818 
† HR 4521 EAS 
SEC. 74724. SHORT EXTENSION POLES FOR USE WITH CAM-
ERAS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.15 
Extension poles of plastics, de-
signed for use with cameras of 
subheading 8525.80.40; such 
poles not buoyant in water, 
each having an adjustable 
length greater than 11 cm and 
less than 23 cm and incor-
porating a collapsible tripod 
handle (provided for in sub-
heading 3926.90.99) .................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74725. LONG EXTENSION POLES FOR CAMERAS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.16 
Extension poles of plastics, de-
signed for use with cameras of 
subheading 8525.80.40; such 
poles not buoyant in water 
and without folding extension 
arms, each pole having an ad-
justable length between 23 cm 
and 56 cm and incorporating 
a collapsible tripod handle 
(provided for in subheading 
3926.90.99) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74726. SWIVEL MOUNTS FOR CAMERAS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.17 
Camera mounts of plastics, de-
signed to hold cameras of sub-
heading 8525.80.40, each 
mount containing a ball joint 
and capable of swiveling the 
camera 360 degrees without 
detaching the mount (provided 
for in subheading 3926.90.99) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.
1819 
† HR 4521 EAS 
SEC. 74727. TRIPOD CAMERA MOUNTS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.18 
Camera mounts of plastics, 
each designed to attach a cam-
era of subheading 8525.80.40 
securely onto a tripod (pro-
vided for in subheading 
3926.90.99) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74728. BULK HYDRAULIC HOSES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.19 
Bulk hoses of vulcanized rub-
ber, reinforced with metal, 
without fittings, designed for 
hydraulic use (provided for in 
subheading 4009.21.00) ...........
1.6% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74729. BRAKE HYDRAULIC HOSES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.20 
Brake hoses, with fittings, for 
the vehicles of subheading 
8701.20 or headings 8702, 
8703, 8704, 8705 or 8711, 
such hoses reinforced or other-
wise combined only with tex-
tile materials (provided for in 
subheading 4009.32.00) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74730. BULK FABRIC/METAL-REINFORCED RUBBER 
HOSES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1820 
† HR 4521 EAS 
‘‘ 
9902.26.21 
Hoses of vulcanized rubber 
(other than hard rubber), rein-
forced with both textile mate-
rials and metal, without fit-
tings, presented in bulk and 
designed for hydraulic use 
(provided for in subheading 
4009.41.00) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74731. DISPOSABLE GLOVES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.22 
Seamless disposable gloves of 
vulcanized rubber other than 
hard rubber, designed for 
household use, such gloves 
other than surgical or medical 
gloves (provided for in sub-
heading 4015.19.10) .................
1.5% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74732. REUSABLE GLOVES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.23 
Household reusable seamless 
gloves, of vulcanized rubber 
other than hard rubber (pro-
vided for in subheading 
4015.19.10) ...............................
1.2% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74733. DOG AND CAT APPAREL. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.26.24 
Articles of pet apparel, exclud-
ing life jackets for pets and pet 
apparel with attached or built- 
in collars or harnesses; such 
articles put up for retail sale 
(provided for in subheading 
4201.00.60) ...............................
1% 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74734. POLYCARBONATE VANITY CASES. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading:
1863 
† HR 4521 EAS 
SEC. 74846. BI-COMPONENT MICROFIBER TUBE MOP RE-
FILLS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.27.62 
Replacement mop heads, con-
structed from circular knit bi- 
component microfiber fabric 
tubes containing by weight 65 
to 90 percent of polyester and 
10 to 35 percent of nylon, 
sewn together with raw edges 
enclosed, valued at least $2 but 
no more than $4 each (pro-
vided for in subheading 
6307.10.20) ...............................
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74847. MICROFIBER DUSTER REFILLS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.27.63 
Duster refill pads made from 
knitted high pile microfiber 
fabric containing by weight 60 
percent to 90 percent of poly-
ester and 10 percent to 40 per-
cent of nylon, valued less than 
$1.80 each (provided for in 
subheading 6307.10.20) ...........
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’. 
SEC. 74848. RFID MOP PADS. 
Subchapter II of chapter 99 is amended by inserting 
in numerical sequence the following new heading: 
‘‘ 
9902.27.64 
Finished mop pads made from 
warp knit fabric containing 
by weight 60 percent to 90 
percent of polyester and 10 
percent to 40 percent of nylon, 
weighing at least 300 g/m2 but 
no more than 700 g/m2, such 
mop pads each having an 
RFID chip permanently 
stitched inside them (provided 
for in subheading 6307.10.20) 
Free 
No change 
No change 
On or before 
12/31/2023 ...
’’.