Treasury Regulations · 26 CFR
§ 1.401(a)(26)-9. Effective dates and transition rules.
Regulation text, no changes From the eCFR, current as of October 15, 2026. The eCFR is an authoritative but unofficial editorial compilation of the Code of Federal Regulations; the official text is the annual CFR on govinfo. Compare it with this section on ecfr.gov (external site) or the official annual CFR on govinfo (external site).
Regulation under 26 U.S.C. § 401(a)(26)
Cite as 26 CFR § 1.401(a)(26)-9
At a glance
Read from the text and its source citation. Not part of the regulation.
- Status
- In the current eCFR
- Issued
- December 4, 1991 by T.D. 8375
- Last amended
- September 3, 1993 by T.D. 8487
- Issued under
- 26 U.S.C. § 401(a)(26)
- Length
- 1,411 words · about 6 min to read
- Defines
- 1 term
- Cross-references
- cites 5 Code sections and 4 regulations; cited by 1
[T.D. 8375, 56 FR 63419, Dec. 4, 1991, as amended by T.D. 8487, 58 FR 46838, Sept. 3, 1993]
Terms defined here
Where the text says “the term … means”. Select a term to jump to its definition.
Cross-references
Computed from the citations in the text of 26 CFR.
Code sections it cites
- § 401 Qualified pension, profit-sharing, and stock bonus plans
- § 403 Taxation of employee annuities
- § 414 Definitions and special rules
- § 4980 Tax on reversion of qualified plan assets to employer
- § 11 Tax imposed
Regulations it cites
- § 54.4975-11 “ESOP” requirements.
- § 1.401(a)(26)-2 Minimum participation rule.
- § 1.401(a)(26)-3 Rules applicable to a defined benefit plan's prior benefit structure.
- § 1.401(a)(26)-8 Definitions.
Cited by 1 other regulation
Amendment history
From the source citation at the end of the section, newest first. T.D. is a Treasury decision; FR is the Federal Register.
- Amended by T.D. 8487 (58 FR 46838)
- Issued by T.D. 8375 (56 FR 63419)
Where it sits in 26 CFR
- Subchapter A Income tax
- Part 1 Income taxes
- Pension, Profit-Sharing, Stock Bonus Plans, etc.
Nearby sections
- § 1.401(a)(26)-5 Employees who benefit under a plan.
- § 1.401(a)(26)-6 Excludable employees.
- § 1.401(a)(26)-7 Testing methods.
- § 1.401(a)(26)-8 Definitions.
- § 1.401(a)(26)-9 Effective dates and transition rules.
- § 1.401(a)(31)-1 Requirement to offer direct rollover of eligible rollover distributions; questions and answers.
- § 1.401(a)(35)-1 Diversification requirements for certain defined contribution plans.
- § 1.401(b)-1 Certain retroactive changes in plan.
- § 1.401(f)-1 Certain custodial accounts and annuity contracts.