ANSI ASHRAE IES Standard 90.1-2022 (SI edition) errata 2023-06 PDF

Full title and description

St ANSI/ASHRAE/IES Standard 90.1-2022 — SI edition — Errata (June 2023). Errata sheets provide post‑publication corrections (typographical errors, table/equation fixes, omitted material or other minor corrections) for the SI (metric) edition of ANSI/ASHRAE/IES Standard 90.1-2022, Energy Standard for Sites and Buildings Except Low‑Rise Residential Buildings. Note: ASHRAE publishes separate errata for different printings and for the I‑P (inch‑pound) and SI editions; users must confirm the errata applicable to their printing.

Abstract

This product entry describes an errata sheet associated with the SI edition of ANSI/ASHRAE/IES Standard 90.1‑2022. Errata sheets list corrections to the published standard and are used to update the standard prior to or concurrent with formal addenda. This entry summarizes the purpose of the June 2023 errata packet, the typical content of such errata sheets, and how to determine which errata apply to a given printed edition. Users should always verify the exact errata sheet that applies to the printing number on the back cover of their copy.

General information

• Status: Errata sheet / correction notice (post‑publication). Verify by printing number/back cover to determine applicability.
• Publication date: June 2023 (errata/addenda activity for the 2022 edition occurred in late June 2023; specific I‑P errata items were published in June 2023 — ASHRAE lists multiple errata/addenda with June 2023 dates). If you require the official SI‑edition errata for a given printing, ASHRAE’s errata listing must be checked (the SI first‑printing errata entry on the ASHRAE errata page is dated later for that specific printing).
• Publisher: American Society of Heating, Refrigerating and Air‑Conditioning Engineers (ASHRAE) in partnership with the Illuminating Engineering Society (IES); ANSI-approved standard.
• ICS / categories: Installations in buildings; building services and lighting — ICS 91.140 (Installations in buildings) and closely related lighting classification ICS 91.160.
• Edition / version: Standard 90.1‑2022 (SI edition) with errata packet referenced as "June 2023" corrections (see note about verifying the applicable errata for a given printing).
• Number of pages: The full 90.1‑2022 standard is a multi‑hundred page document (commonly listed around ~472 pages for the full standard); errata sheets themselves are typically short (one to a few pages). Verify the specific errata PDF for exact page count.

Scope

The errata sheet applies narrowly to corrections in the SI edition of ANSI/ASHRAE/IES Standard 90.1‑2022 and does not change the standard’s substantive technical scope (minimum energy‑efficiency requirements for sites and buildings except low‑rise residential). Errata items typically correct typographical mistakes, table labels, numeric transcriptions, equation typographical errors, cross‑references, or omissions that were discovered after publication; substantive technical changes are handled through formal addenda and addendum procedures. Always confirm whether an errata affects normative text you rely on for compliance.

Key topics and requirements

• Typographical and editorial corrections to normative clauses and tables (e.g., corrected footnotes, table headings, unit labels that affect SI values).
• Corrections to numeric values in tables, equations, or performance targets where printing/format errors occurred.
• Clarifications of cross‑references and corrected paragraph/section numbering to match approved text.
• Instructions on applicability by printing number (which printings the errata sheet applies to) — users must match the errata to their copy’s printing code.
• Note: substantive technical changes are normally issued as addenda; errata do not usually introduce new technical requirements but correct the published text.

Typical use and users

Design professionals (mechanical/electrical engineers, energy modelers), code officials, building owners, compliance reviewers, commissioning agents, and standards librarians use errata sheets to ensure they are applying the corrected text of 90.1‑2022. Errata are particularly important when exact numeric values, units or table entries affect compliance calculations or code enforcement. Users should apply the errata that correspond to the printing number of their SI edition or use an ASHRAE‑provided corrected PDF for official compliance work.

Related standards

Related documents and referenced standards include previous and subsequent editions of ANSI/ASHRAE/IES Standard 90.1 (2019, 2016, etc.), ASHRAE addenda published against the 2022 edition, and other referenced standards and codes used by jurisdictions for energy code adoption (for example, the IECC and other ASHRAE normative references). Users should consult the ASHRAE addenda and errata listings to see the full set of post‑publication updates.

Keywords

ASHRAE 90.1, 90.1‑2022, SI edition, errata, corrections, energy standard, building energy efficiency, addenda, compliance, lighting, HVAC, envelope, ANSI, IES.

FAQ

Q: What is this standard?

A: ANSI/ASHRAE/IES Standard 90.1‑2022 is the 2022 edition of the Energy Standard for Sites and Buildings Except Low‑Rise Residential Buildings. It establishes minimum energy‑efficiency requirements for building systems, and is produced by ASHRAE in partnership with IES and ANSI.

Q: What does it cover?

A: The standard covers energy‑efficiency requirements and compliance methods for building envelope, HVAC systems, service water heating, power, lighting, and building site energy considerations (for non‑low‑rise residential buildings). An errata sheet for the SI edition corrects post‑publication errors in the printed SI text.

Q: Who typically uses it?

A: Architects, mechanical and electrical engineers, energy modelers, code officials, building compliance reviewers, commissioning agents, and owners/developers use the standard and its errata to design and verify energy performance and to demonstrate compliance with codes and green building programs.

Q: Is it current or superseded?

A: The 90.1‑2022 edition supersedes 90.1‑2019 as the 2022 version. Errata and addenda are issued after publication; users must apply the relevant errata/addenda for the edition and printing they are using. ASHRAE’s errata page lists the errata sheets and their publication dates for specific printings and editions. For example, ASHRAE lists errata/addenda activity in June 2023 for the 2022 release, while the SI‑edition first‑printing errata entry shown on ASHRAE’s errata page is dated February 9, 2026 for that specific printing — confirm applicable errata by printing number.

Q: Is it part of a series?

A: Yes — Standard 90.1 is published in a continuing triennial cycle (previous editions include 2019, 2016, etc.) and is maintained through addenda and errata between editions. It is also part of a family of ASHRAE energy and HVAC standards and is routinely referenced by building codes and programs.

Q: What are the key keywords?

A: Energy standard, building energy efficiency, ASHRAE 90.1, SI edition, errata, addenda, compliance, lighting power, HVAC, building envelope, ANSI, IES.