# § 151. Definition
As used in this chapter, the term “debtor” means a debtor concerning whom a petition has been filed under title 11.
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**Source Credit**: (June 25, 1948, ch. 645, 62 Stat. 689; Pub. L. 95–598, title III, § 314(b)(1), Nov. 6, 1978, 92 Stat. 2676; Pub. L. 103–322, title XXXIII, § 330008(5), Sept. 13, 1994, 108 Stat. 2143.)
### Historical and Revision Notes
Based on , U.S.C., 1940 ed., Bankruptcy ( as added , ).
Definition of “bankruptcy” was added to avoid repetitious references to said title 11.
Minor changes in phraseology was made.
## Editorial Notes
### Amendments
1994— substituted “means” for “mean”.
1978— substituted “Definition” for “Definitions” in section catchline, substituted definition of “debtor” as a debtor concerning whom a petition has been filed under title 11 for definition of “bankrupt” as a debtor by or against whom a petition has been filed under title 11, and struck out definition of “bankruptcy” as including any proceeding, arrangement, or plan pursuant to title 11.
## Statutory Notes and Related Subsidiaries
### Effective Date of 1978 Amendment
Amendment by effective , see , set out as an Effective Date note preceding , Bankruptcy.
### Savings Provision
Amendment by not to affect the application of chapter 9 (§ 151 et seq.), chapter 96 (§ 1961 et seq.), or section 2516, 3057, or 3284 of this title to any act of any person (1) committed before , or (2) committed after , in connection with a case commenced before such date, see , set out as a note preceding , Bankruptcy.