Public Review Open: Proposed Revision to Version 4.1 of the IQPP Viral Marker Standard

In accordance with the procedures for developing PPTA Voluntary Standards, this document is hereby issued for a sixty-day public review, from November 9, 2021 until January 8, 2022. Members of the public are asked to send any comments, using the enclosed comment form, to Sonia Balboni at, by January 8, 2022.

We encourage your early review and feedback. After the close of the comment period, all comments received in relation to the proposed revision will be considered. All commenters will receive written notification of the resolution to their comment(s). If resolution to the comments results in substantive changes to the draft(s), another comment period may be initiated. If resolution to the comments results in no or minor changes, the draft(s) will be implemented as a revision to an IQPP standard. Adequate notice will be provided prior to the implementation period for any amendment.

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