RESNET Announces Public Comment on Draft PDS-02 of proposed MINHERS Addendum 48f: COVID-19 Pandemic Exception for Onsite Airtightness Tests Comment Period October 14, 2020 – November 12, 2020 Addendum 48f authorizes an extension of the exception for testing first authorized by interim Addendum 48i and is intended to apply only during the COVID-19 Pandemic. It adds an exception to the requirements of Standard ANSI/RESNET/ICC 301 in Section 303 of the MINHERS standards and applies only to the determination of RESNET Home Energy Rating System, (HERS), ratings. The exception allows use of default values in lieu of conducting air tightness tests for dwelling unit enclosures and duct systems as well as for measuring airflow of mechanical ventilation systems in accordance with Standard ANSI/RESNET/ICC 380. Note that programs other than the RESNET HERS that adopt Standard ANSI/RESNET/ICC 301 for energy ratings of homes may not recognize this test exception. Changes to draft PDS-01 as shown in draft PDS-02 by strike through/underline text in red print are open for comment. Public comments will be accepted through November 12, 2020. The draft addendum, comment form and comments submitted to date are posted at PDS-02 MINHERS Addendum 48f, COVID-19 Pandemic Exception for Onsite Airtightness Tests. After the comment period, the SDC 300 will consider and document each of the comments submitted and make appropriate changes. Substantive changes will be submitted for public comment.