id,agency_id,docket_id,title,document_type,subtype,posted_date,posted_year,posted_month,comment_start_date,comment_end_date,last_modified,fr_doc_num,open_for_comment,withdrawn,object_id
IRS-2026-0067-0001,IRS,IRS-2026-0067,Notice 2026-4,Notice,Notice of Publication,2026-03-05T05:00:00Z,2026,3,2026-03-05T05:00:00Z,2026-05-24T03:59:59Z,2026-03-08T09:00:09Z,,1,0,09000064b91eec97
IRS-2026-0232-0001,IRS,IRS-2026-0232,Notice 2026-16,Notice,Notice of Publication,2026-03-02T05:00:00Z,2026,3,2026-03-02T05:00:00Z,2026-04-21T03:59:59Z,2026-03-10T09:00:13Z,,1,0,09000064b91e9d12
IRS-2026-0199-0001,IRS,IRS-2026-0199,Notice 2026-17,Notice,Notice of Publication,2026-02-25T05:00:00Z,2026,2,2026-02-25T05:00:00Z,2026-04-27T03:59:59Z,2026-02-28T10:00:17Z,,1,0,09000064b91dad76
IRS-2026-0166-0001,IRS,IRS-2026-0166,Guidance to Apply Interim Safe Harbors for Purposes of Determining a Taxpayer’s Material Assistance from a Prohibited Foreign Entity; Other Prohibited Foreign Entity Guidance (Notice 2026-15),Notice,Notice of Publication,2026-02-12T05:00:00Z,2026,2,2026-02-12T05:00:00Z,2026-03-31T03:59:59Z,2026-02-25T10:00:21Z,,1,0,09000064b91a87fa
IRS-2025-0599-0001,IRS,IRS-2025-0599,"Superfund Tax on Chemical Substances; Request To Modify List of Taxable Substances; Notice of Filing for Methyl Methacrylate-ethyl Methacrylate-methacrylic Acid Copolymer in a Styrene Solution
(x=75.76, y=8.46, z=1, s=168.4), (IRS-2025-0599)",Notice,Notice of Filing,2026-01-14T05:00:00Z,2026,1,2026-01-14T05:00:00Z,2026-03-17T03:59:59Z,2026-01-14T20:19:53Z,,1,0,09000064b913e5d6
IRS-2025-0598-0001,IRS,IRS-2025-0598,"Superfund Tax on Chemical Substances; Request To Modify List of Taxable Substances; Notice of Filing for Vinyl Acetate-crotonic Acid Copolymer in a Styrene Solution (x=99, y=1, s=124), (IRS-2025-0598)",Notice,Notice of Filing,2026-01-14T05:00:00Z,2026,1,2026-01-14T05:00:00Z,2026-03-17T03:59:59Z,2026-01-14T20:00:49Z,,1,0,09000064b913e5b1
IRS-2025-0601-0001,IRS,IRS-2025-0601,"Superfund Tax on Chemical Substances; Request To Modify List of Taxable Substances; Notice of Filing for Poly(styrene-divinylbenzene-ethylvinylbenzene), With Styrene Content of Less Than 50%
(x=7.64x1016, y=1.03x1017, z=2.28x1016), (IRS-2025-0601)",Notice,Notice of Filing,2026-01-14T05:00:00Z,2026,1,2026-01-14T05:00:00Z,2026-03-17T03:59:59Z,2026-01-14T22:06:59Z,,1,0,09000064b913e603
IRS-2025-0600-0001,IRS,IRS-2025-0600,"Superfund Tax on Chemical Substances; Request To Modify List of Taxable Substances; Notice of Filing for Poly(styrene-divinylbenzene-ethylvinylbenzene), With Styrene Content of Greater than 50%
(x=2.02x1017, y=2.98x1016, z=7.35x1015), (IRS-2025-0600)",Notice,Notice of Filing,2026-01-14T05:00:00Z,2026,1,2026-01-14T05:00:00Z,2026-03-17T03:59:59Z,2026-01-14T20:28:46Z,,1,0,09000064b913e5ec
IRS-2025-0602-0001,IRS,IRS-2025-0602,"Superfund Tax on Chemical Substances; Request To Modify List of Taxable Substances; Notice of Filing for Acrylate Monomer Synthetic Rubber in a Water Emulsion (x=537.29, y=664.03, z=223.59), (IRS-2025-0602)",Notice,Notice of Filing,2026-01-14T05:00:00Z,2026,1,2026-01-14T05:00:00Z,2026-03-17T03:59:59Z,2026-02-06T00:44:28Z,,1,0,09000064b913e61d