Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "Regional ACP" "100001892" "2014-07-01" "New Construction, Core and Shell, Schools - New Construction, Retail - New Construction, Data centers - New Construction, Hospitality - New Construction, Warehouse and distribution centers - New Construction" "EQp1 - Minimum indoor air quality performance" "None" "None" "X" "Canada" "LEED Reference Guide for Building Design and Construction" "607" "Requirements, Residential Only" "Add the following as a Canada ACP to the final bullet.\n\n ""Cities in Canada that have been proven to have an average radon concentration of 4 pCi/L (150 Bq/m3) or less through testing in accordance with the Health Canada Guide for Radon Measurements in Dwellings (with a minimum of 50 tests) are considered equivalent to EPA Radon Zone 2, and therefore are exempted from the radon requirements of this prerequisite."" " "Form Update" "5000019" "2014-10-01" "New Construction, Core and Shell, Schools - New Construction, Retail - New Construction, Healthcare, Data centers - New Construction, Hospitality - New Construction, Warehouse and distribution centers - New Construction, Commercial Interiors, Retail - Commercial Interiors, Hospitality - Commercial Interiors, Existing Buildings, Schools - Existing Buildings, Retail - Existing Buildings, Data centers - Existing Buildings, Hospitality - Existing Buildings, Warehouse and distribution centers - Existing Buildings" "EQp1 - Minimum indoor air quality performance" "100001991" "Minimum Indoor Air Quality Performance Calculator" "New calculator for projects performing the ASHRAE 62.1 ventilation rate procedure calculations required for EQ Prerequisite Minimum Indoor Air Quality Performance. This optional calculator can be used for LEED 2009 and LEED v4 projects and is an alternative to the ASHRAE 62.1 62MZCalc and previous 100% outdoor air and single zone calculators." "Reference Guide Correction" "100001991" "2015-04-01" "New Construction, Core and Shell, Schools - New Construction, Retail - New Construction, Healthcare, Data centers - New Construction, Hospitality - New Construction, Warehouse and distribution centers - New Construction, Commercial Interiors, Retail - Commercial Interiors, Hospitality - Commercial Interiors, Existing Buildings, Schools - Existing Buildings, Retail - Existing Buildings, Data centers - Existing Buildings, Hospitality - Existing Buildings, Warehouse and distribution centers - Existing Buildings" "EQ101 - Minimum indoor air quality performance" "5000019" "Minimum Indoor Air Quality Performance Calculator" "BD+C: 611,617; ID+C: 311, 316-317; BO+M: 399, 402" "Step-by-Step Guidance and Further Explanation" "As of October 2014, a new calculator is available for the Minimum Indoor Air Quality Performance prerequisite. This correction includes the new calculator in the guidance for multiple-zone systems.\n\n 1. In Step-by-Step Guidance, Mechanically Ventilated Spaces (and Mixed-Mode Spaces When a Mechanical Ventilation is Active), [BD+C page 611, Step 2; ID+C page 311, Step 2; BO+M page 399, Step 4]\n Replace the first sentence in last the bullet with the following: ""For multiple-zone systems, use the calculator provided by USGBC or ASHRAE’s 62MZCalc Spreadsheet.""\n\n 2. In Further Explanation, Calculations for Multiple-Zone Recirculating Systems [BD+C page 617; ID+C page 316; BO+M page 402]\n Replace the first paragraph with the following: ""Because of the complexity of the calculations for multiple-zone recirculating systems, project teams must use the calculator provided by USGBC, ASHRAE's 62MZCalc spreadsheet, or energy modeling software to perform the ventilation rate procedure calculations and determine the amount of outdoor air required at the system level.""\n\n 3. In Further Explanation, Calculations for Multiple-Zone Recirculating Systems, System Ventilation Efficiency [BD+C page 617; ID+C page 317; BO+M page 402] Replace the second and third paragraphs with the following: ""The critical zone is the zone with the highest proportion of required outdoor air to provided supply air. Critical zones are often densely occupied spaces, such as conference rooms. If using the calculator provided by USGBC or ASHRAE’s 62MZCalc spreadsheet, when all zones are entered, the critical zone for the system is determined automatically.\n\n For large projects, it may not be feasible to enter each individual zone. In these cases, the mechanical engineer can determine the outdoor air required for the system simply by identifying the potentially critical zone(s). For a detailed discussion of identifying critical zones, see ASHRAE Standard 62.1–2010, Appendix A–A3.1, Selecting Zones for Calculation, and ASHRAE 62.1–2010 User’s Manual, Example 6-L.""" "Regional ACP" "100002004" "2015-04-01" "New Construction, Core and Shell, Schools - New Construction, Retail - New Construction, Data centers - New Construction, Hospitality - New Construction, Warehouse and distribution centers - New Construction, Commercial Interiors, Retail - Commercial Interiors, Hospitality - Commercial Interiors, Existing Buildings, Schools - Existing Buildings, Retail - Existing Buildings, Data centers - Existing Buildings, Hospitality - Existing Buildings, Warehouse and distribution centers - Existing Buildings" "EQ101 - Minimum indoor air quality performance" "None" "None" "X" "Europe" "308, 606, 396" "Requirements, Naturally Ventilated Spaces" "Add the following after the text for Naturally Ventilated Spaces:\n\n ""Projects in Europe may use Arbeitsstaettenrichtlinie ASR 5 as a local equivalent to ASHRAE Standard 62.1-2010, natural ventilation procedure."""