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2025 ACM Reference Manual Update September 2026

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State & Local

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

AI Contract Overview

Pursuant to Public Resources Code section 25402.1(e), the California Energy Commission has certified the 2025 Alternative Calculation Method Reference Manual to assist designers, builders, and contractors in meeting the 2025 Building Energy Efficiency Standards. This manual is part of a broader energy conservation suite that includes compliance manuals and data registry requirements designed to support the implementation of updates to Part 6 and Part 1 of Title 24 of the California Code of Regulations. The ACM Reference Manual specifically documents the modeling methods used in compliance software to demonstrate performance compliance with the 2025 Energy Code. The manual was officially certified during the California Energy Commission Business Meeting on September 9, 2026, with a formal notice posted on September 22, 2026. Additionally, the commission filed a Notice of Exemption on September 21, 2026, asserting that the manual does not constitute a project under the California Environmental Quality Act. This exemption is based on the fact that the manual serves as an instructional guide for software and does not cause physical changes to the environment or impose new requirements. The project is managed by the Building Standards Branch in Sacramento, California.

General Info

CEC certified the 2025 ACM Reference Manual for Building Energy Efficiency Standards compliance.

Agency

California → Energy Commission

NAICS

541330 - Engineering Services

Place of Performance

Sacramento, CA, 95814

Set-Aside

NONE

Documents

No documents available

Documents will appear here when they are available.

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Timeline

PostedSep 22

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Organization & Contact Information

AgencyCalifornia → Energy Commission

Contacts1 person available

OfficeN/A

Organization / Agency

California → Energy Commission

Office AddressN/A

Contacts

Will VicentDeputy Director, Building Standards Branch

contact@example.gov

+1 (555) 000-0000

Full Description

Public Resources Code, section 25402.1(e) directs the California Energy Commission (CEC) to certify an energy conservation manual for use by designers, builders, and contractors of residential and nonresidential buildings no later than 180 days after approval of the updates to Part 6 and Part 1 of Title 24 of the California Code of Regulations (Energy Code). To implement the requirement of section 25402.1(e), CEC staff developed an energy conservation manual that is comprised of several documents, including alternative calculation method reference manuals, compliance manuals, a data registry requirements manual, and other compliance documents, all of which contain information to assist designers, builders, and contractors in meeting the 2025 Energy Code, including forms, charts, and other data. The CEC developed updated content for the Alternative Calculation Method Reference Manual (ACM Reference Manual), which document the modeling methods used in the 2025 compliance software used to demonstrates performance compliance with the 2025 Building Energy Efficiency Standards. The CEC certified the ACM Reference Manual at the September 9, 2026, CEC Business Meeting.

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