LEED v4.1 - Green Building Rating System (US Green Building Council) LEED-EQ-Indoor-Environmental-Quality-Minimum-IAQ-Low-Emitting-Materials-Daylight-Quality-Views-Acoustic-Performance: LEED v4.1 EQ - Indoor Environmental Quality + IAQ + Low-Emitting + Daylight

LEED v4.1 Indoor Environmental Quality (EQ) Credit Category - 16 points BD+C max. EQ prerequisites and credits address indoor air quality + thermal comfort + lighting + acoustic + occupant wellbeing: (a) EQ Prerequisite 1 Minimum Indoor Air Quality Performance (REQUIRED 0 points) - meet ASHRAE 62.1-2016 ventilation rate procedure + indoor air quality procedure + monitoring; (b) EQ Prerequisite 2 Environmental Tobacco Smoke Control (REQUIRED 0 points) - prohibit smoking within building + 25 feet of entrances + intakes + operable windows + outdoor signage; (c) EQ Prerequisite 3 Minimum Acoustic Performance (REQUIRED 0 points, Schools only) - HVAC noise + reverberation time + sound transmission per ANSI S12.60; (d) EQ Credit 1 Enhanced Indoor Air Quality Strategies (1-2 points) - additional outdoor air monitoring + carbon dioxide monitoring + air filtration MERV 13+ + entryway systems + interior cross-contamination prevention + MERV 13 filtration + post-occupancy monitoring; (e) EQ Credit 2 Low-Emitting Materials (1-3 points) - meet emissions standards for interior paints + adhesives + sealants + flooring + ceilings + walls + insulation + furniture (CDPH Standard Method v1.2 + GREENGUARD Gold + FloorScore + SCS Indoor Advantage Gold + AgBB); (f) EQ Credit 3 Construction Indoor Air Quality Management Plan (1 point) - SMACNA IAQ Guidelines for Occupied Buildings under Construction; (g) EQ Credit 4 Indoor Air Quality Assessment (1-2 points) - flush-out + air testing before occupancy; (h) EQ Credit 5 Thermal Comfort (1 point) - ASHRAE 55-2017 thermal comfort + occupant survey post-occupancy; (i) EQ Credit 6 Interior Lighting (1-2 points) - lighting controls + lighting quality + reflectance; (j) EQ Credit 7 Daylight (1-3 points) - 55-90% spatial daylight autonomy + view to outdoors; (k) EQ Credit 8 Quality Views (1 point) - direct views of outdoors from 75% of regularly occupied floor area; (l) EQ Credit 9 Acoustic Performance (1-2 points) - HVAC noise + reverberation + sound isolation. Coordination with ASHRAE Standards + WELL Building Standard + Fitwel + AIA Resilience by Design.