LEED-BDC-v4-v5-Summary-of-Changes - Page 013

Extracted Content

Indoor Environmental Quality

The LEED v5 Indoor Environmental Quality (EQ) credit category offers a comprehensive framework for buildings to enhance human well-being, health, and comfort. It includes practices covering air quality, thermal comfort, daylight, views, and acoustics, while also incorporating holistic design considerations such as biophilia, accessibility, and adaptability. This category emphasizes decarbonization and quality of life to foster connections between people and their environments. LEED v5 encourages the development of buildings that are not only energy-efficient but also accessible to a variety of occupants, ultimately creating sustainable spaces where more people can thrive. LEED v5 introduces new credits and prerequisites that will help make spaces more inclusive and sustainable by addressing diverse human experiences and promoting resilient spaces.

Prerequisite	Minimum Indoor Air Quality Performance	Incorporated into new prerequisite: EQp Fundamental Air Quality. Added a requirement to investigate outdoor air quality in accordance with ASHRAE 62.1-2022 sections 4.1-4.3. Updated the requirement to meet ASHRAE Standard 62.1-2022 sections 5 and 6 (previously required to meet ASHRAE 62.1-2010 sections 4-7). Added a clarification to provide outdoor airflow measurement devices for all mechanical ventilation systems where the outdoor air intake flow is greater than 1,000 cfm. CEN standards to be included in region compliance paths in Project Priority Library. Removed outdoor air intake flow alarm and accuracy requirements. Combined and modified requirements for mechanically and naturally ventilated spaces.
Prerequisite	Environmental Tobacco Smoke Control	Incorporated into new prerequisite: No Smoking or Vehicle Idling. Removed requirement to post signage within 10 ft of all building entrances.
Prerequisite	Construction Management	New prerequisite. Incorporates LEED v4 EQc Construction Indoor Air Quality Management Plan.
Prerequisite	Fundamental Air Quality	New prerequisite. Incorporates LEED v4 EQp Minimum Indoor Air Quality Performance and Eqc Enhanced Indoor Air Quality Strategies.
Prerequisite	No Smoking or Vehicle Idling	New prerequisite. Incorporates LEED v4 EQp Environmental Tobacco Smoke Control.
Credit	Enhanced Indoor Air Quality Strategies	Entryway systems and filtration incorporated into new prerequisite: EQp Fundamental Air Quality. Removed length requirement for entryway systems. Added filtration requirement to EQp Fundamental Air Quality prerequisite for each central HVAC system that supplies outdoor air and/or recirculated air to have a MERV of at least 13 or equivalent filtration media defined by ISO 16890-2016, or in-room air-cleaning systems that meet safety and effectiveness criteria.

Repair provenance

Reconstructed from the PDF’s embedded text and word/block coordinates, then visually verified against original PDF page 13 on 2026-07-26. The category introduction, six rows, numeric ranges, and all bullet associations were confirmed from the original page image; no Marker or OCR text was used.

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