These guidelines are provided for creating software for use with the Modernized e-File (MeF) system.
Numbering
Issue for tax year 2003 also called revised.
Note
Description based on: Tax year 2003; title from title screen (viewed on Aug. 2, 2004).
System Details
Mode of access: Internet at the IRS web site. Address of latest issue as of 8/2/04: http://www.irs.gov/pub/irs-pdf/p4164.pdf; current access available via PURL.