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General Service Fluorescent Lamps

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As defined in the Code of Federal Regulations (CFR), “general service fluorescent lamp” means any fluorescent lamp which can be used to satisfy the majority of fluorescent lighting applications, but does not include any lamp designed and marketed for the following nongeneral application: (1) Fluorescent lamps designed to promote plant growth; (2) Fluorescent lamps specifically designed for cold temperature applications; (3) Colored fluorescent lamps; (4) Impact-resistant fluorescent lamps; (5) Reflectorized or aperture lamps; (6) Fluorescent lamps designed for use in reprographic equipment; (7) Lamps primarily designed to produce radiation in the ultra-violet region of the spectrum; and (8) Lamps with a Color Rendering Index of 87 or greater. 10 CFR 430.2 Manufacturers have been required to comply with the U.S. Department of Energy (DOE) energy conservation standards for general service fluorescent lamps (GSFLs) since 1992.

Current Standard | Current Test Procedure | Ongoing Rulemaking for Standards | Ongoing Rulemaking for Test Procedure | Helpful Links

Recent and Ongoing Activities

DOE has published a Federal Register final determination pertaining to energy conservation standards for general service fluorescent lamps (GSFLs). The Energy Policy and Conservation Act (EPCA) requires DOE to periodically determine whether more- stringent, amended standards would be technologically feasible and economically justified, and would result in significant energy savings. In this final determination, DOE has determined that energy conservation standards for GSFLs do not need to be amended. 

  • This Final Determination will be effective March 15, 2023.

DOE has published a Federal Register Final Rule adopting amendments to the test procedures for general service fluorescent lamps (GSFLs), incandescent reflector lamps (IRLs), and general service incandescent lamps (GSILs) to update references to industry test standards and provide citations to specific sections of these standards; amend definitions; reference specific sections within industry test standards for further clarity; provide test methods for measuring coloring rendering index (CRI) for incandescent lamps and measuring lifetime of IRLs; clarify test frequency and inclusion of cathode power in measurements for GSFLs; decrease the sample size and specify all metrics for all lamps be measured from the same sample; and align terminology across relevant sections of the Code of Federal Regulations relating to GSFLs, IRLs and GSILs.

  • The effective date of this rule is September 30, 2022.
  • The final rule changes will be mandatory for product testing February 27, 2023. 
  • The incorporation by reference of certain material listed in this rule is approved by the Director of the Federal Register as of September 30, 2022. 
  • The incorporation by reference of certain other material listed in this rule was approved by the Director of the Federal Register as of June 30, 1997, March 23, 2009, September 14, 2009, and February 27, 2012.


Proposed Definition and Data Availability

For the latest information on the planned timing of future DOE regulatory milestones, see the current Office of Management and Budget Unified Agenda of Regulatory and Deregulatory Actions. All planned dates are preliminary and subject to change.


Final Determination 
  • Federal Register, 88FR9118 (February 13, 2023)
Notice of Proposed Determination
  • Federal Register, 87FR32329 (May 31, 2022)
Request for Information
Final Rule
  • Federal Register, 80 FR 4041 (January 26, 2015)

The GSFL energy conservation standard rulemaking docket EERE-2011-BT-STD-0006 contains all notices, public comments, public meeting transcripts, and supporting documents pertaining to this rulemaking.

Public Meeting Information:

There is no public meeting scheduled at this time.

Submitting Public Comments

The comment period is closed.

Test Procedure

Final Rule
  • Federal Register, 87FR53618 (August 31, 2022)

Notice of Proposed Rulemaking and Request for Comment

  • Federal Register, 86FR29888 (June 3, 2021)
Request for Information

Public Meeting Information

There is no public meeting scheduled at this time.

Submitting Public Comments

The comment period is closed.

Current Standard

GSFLs manufactured and distributed in commerce, as defined by 42 U.S.C. 6291(16), must meet the energy conservation standards specified in the Code of Federal Regulations at 10 CFR 430.32(n).

Current Test Procedure

To determine that GSFLs that are currently manufactured or distributed into commerce are in compliance with DOE standards, manufacturers must follow the test procedure methods specified at 10 CFR 430.23(r). The methods to conduct the test procedure are further specified in 10 CFR 430, Subpart B, Appendix R.

Helpful Links


DOE has established regulations on certification, compliance, and enforcement in the CFR at 10 CFR Part 429.  These regulations cover statistical sampling plans, certified ratings, certification reports, record retention, and enforcement.  More information on these regulations is available here.


For information on current test procedure waivers, see DOE’s Waivers webpage.

For information about obtaining test procedure waivers, see 10 CFR 430.27.


DOE's Office of Hearings and Appeals has not authorized exception relief for GSFLs.

For information about obtaining exception relief, see 10 CFR part 1003.   

Guidance and Frequently Asked Questions

For information on further guidance and answers to Frequently Asked Questions on all covered products, see DOE’s Further Guidance database.

State Exemptions to Federal Pre-emption

DOE has not exempted any state from this energy conservation standard. States may petition DOE to exempt a state regulation from preemption by the Federal energy conservation standard. States may also petition DOE to withdraw such exemptions. For details, see 10 CFR part 430, subpart D.

Small Business Exemptions

Any manufacturer of a covered product with annual gross revenues that do not exceed $8,000,000 from all its operations and meets certain other conditions may apply for an exemption to the energy conservation standard. For details, see 10 CFR part 430, subpart E.


DOE supports the testing and verification of ENERGY STAR® products in close collaboration with the Environmental Protection Agency.

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