Sec. 301.7701-12 Employer identification number.
For purposes of this chapter, the term "employer identification number" means the taxpayer identifying number of an individual or other person (whether or not an employer) which is assigned pursuant to section 6011(b) or corresponding provisions of prior law, or pursuant to section 6109, and in which nine digits are separated by a hyphen, as follows: 00-0000000. The terms "employer identification number" and "identification number" (defined in section 31.0-2(a)(11) of this chapter (Employment Tax Regulations)) refer to the same number.
[Adopted by T.D. 6606, 27 FR 8523, Aug. 25, 1962. Revised at 32 FR 15241, Nov. 3, 1967. Further revised by T.D. 7306, 39 FR 9947, Mar. 15, 1974]