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As defined in the Code of Federal Regulations (CFR), “Metal halide lamp fixture" means a light fixture for general lighting application designed to be operated with a metal halide lamp and a ballast for a metal halide lamp. 10 CFR 431.322. Manufacturers have been required to comply with the U.S. Department of Energy (DOE) energy conservation standards for metal halide lamp fixtures since 2007.
DOE has published a Federal Register notice of final determination pertaining to energy conservation standards for metal halide lamp fixtures (MHLFs). DOE has determined that more-stringent standards for MHLFs would not be cost effective and, therefore, DOE does not need to amend its standards for MHLFs.
The effective date of this final determination is March 16, 2026.
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.
Standards
Final Determination - Federal Register, 91 FR 6737 (February 13, 2026)
Proposed Determination - Federal Register, 88FR67989 (October 3, 2023)
Request for Information - Federal Register, 87FR60555 (October 6, 2022)
The metal halide lamp fixtures energy conservation standard rulemaking dockets EERE-2022-BT-STD-0023 contains all notices, public comments, public meeting transcripts, and supporting documents pertaining to this rulemaking.
Public Meeting Information
There is no meeting scheduled at this time.
Submitting Public Comments
The comment period is closed.
Test Procedure
Public Meeting Information
There is no meeting scheduled at this time.
Submitting Public Comments
The comment period is closed.
Metal halide lamp fixtures 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 431.326.
To determine that metal halide lamp fixtures 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 431.324.
Compliance
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.
Waivers
For information on current test procedure waivers, see DOE’s Waivers webpage.
For information about obtaining test procedure waivers, see 10 CFR 430.27.
Exceptions
DOE's Office of Hearings and Appeals has not authorized exception relief for metal halide lamp fixtures.
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.
ENERGY STAR®
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 EnergySavers.gov.
For more information related to this product, please email:
ApplianceStandardsQuestions@ee.doe.gov