Mailing by U.S. Postal Service, truck or air freight: v
Internal Revenue Bulletin 1999-31 · 2026-10-03 edition · updated 2026-10-04 · United States
IRS-Martinsburg Computing Center Information Reporting Program Attn: Extension of Time Coordinator 240 Murall Drive Kearneysville, WV 25430
Sec. 2. Telephone Numbers for Contacting IRS/MCC
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