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Programs Version Dates

The PHIUS+ Certification project contract date determines the required program version. Generally, projects can voluntary choose to comply with a newer version than required by contract date.

Effective Date

2007 2013 2015 2015 2016 2017 2017 2018 2019
1-Jan 1-Jan 1-Mar 15-Sep 1-Jan 1-Mar 1-Sep 1-Mar

1-Apr

Space Conditioning
Performance Req.
PHIUS Old Std. PHIUS Old
Std. //
PHIUS+ 2015
PHIUS+ 2015 PHIUS+ 2015
// PHIUS+
2018
PHIUS+ 2018
Source Energy Req.
Air-Tightness Req.
Single Family On-Site QA/QC PHIUS Work-Sheet PHIUS+ v3.0.2 v4.0
Multifamily On-Site QA/QC Case-by-case v2.0 v2.1

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