General Service Lamps

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General Service Lamps (GSLs) include general service incandescent lamps (GSILs), compact fluorescent lamps (CFLs), general service light-emitting diode (LED) lamps, organic light-emitting diode (OLED) lamps, and any other lamps that are used to satisfy lighting applications traditionally served by GSILs. GSLs are used in general lighting applications and account for the majority of installed lighting in the residential sector.

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 Rule pertaining to definitions for General Service Lamps (GSL) and General Service Incandescent Lamp (GSIL). On January 19, 2017, DOE published two final rules adopting revised definitions of GSL and GSIL, and other supplemental definitions, to go into effect January 1, 2020. (“January 2017 Final Rules”). Prior to that effective date, on September 5, 2019, DOE withdrew the revised definitions of GSL, GSIL, and the other supplemental definitions. Upon further review and consideration, on August 19, 2021, DOE published a notice of proposed rulemaking (NOPR) proposing to amend the definitions of GSL, GSIL and the other supplemental definitions as previously set forth in the January 2017 Final Rules. DOE responds to comments received on the NOPR in this final rule and adopts the definitions of GSL and GSIL and the associated supplemental definitions set forth in the January 2017 Final Rules as proposed in the NOPR.

  • The effective date of this rule is July 8, 2022. 

DOE has published a Federal Register final rule pertaining to general service lamps. In this final rule, DOE is codifying in the Code of Federal Regulations the 45 lumens per watt (“lm/W”) backstop requirement for general service lamps (GSLs) that Congress prescribed in the Energy Policy and Conservation Act, as amended. DOE has determined this backstop requirement applies because DOE failed to complete a rulemaking regarding GSLs in accordance with certain statutory criteria. This final rule represents a departure from DOE's previous determination published in 2019 that the backstop requirement was not triggered.

  • The effective date of this rule is July 25, 2022.


Final Rule
Final Rule; Withdrawal 
  • Federal Register, 84FR46661 (September 5, 2019)

Notice of Proposed Rule; Comment Extension 

Notice of Proposed Rule

  • Federal Register, 84FR12143 (April 1, 2019)
  • Federal Register, 84FR3120 (February 11, 2019)
Definitions Final Rule 


Final Rule Backstop

Notice of Proposed Rule 
Request for Information; Backstop
  • Federal Register, 86FR28001 (May 25, 2021)

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.


Notice of Proposed Rulemaking
  • Federal Register, 86FR46611 (August 19, 2021)
Notice of Proposed Definition
  • Federal Register, FR 71794 (October 18, 2016)

The general service lamps energy conservation standard rulemaking docket EERE-2013-BT-STD-0051 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, 81 FR 72493 (October 20, 2016)
  • The effective date of this rule is November 21, 2016. The final rule changes will be mandatory for product testing starting April 19, 2017.


LED test procedure
CFL test procedure

Public Meeting Information

There is no public meeting scheduled at this time.

Submitting Public Comments

The comment period is closed.

Current Standard

General service lamps (GSLs) must meet the energy conservation standards specified in the Code of Federal Regulations at 10 CFR 430.32(dd).

Current Test Procedure

To determine that general service lamps 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(gg).

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 GSLs.

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.

Find tips and guidance for making your home, workplace, or vehicle more energy efficient visit

Contact information

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