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PA Bulletin, Doc. No. 22-1663



Availability of Technical Guidance

[52 Pa.B. 6784]
[Saturday, October 29, 2022]

 Technical guidance documents (TGD) are available on the Department of Environmental Protection's (Department) web site at The ''Technical Guidance Final Documents'' heading is the link to a menu of the various Department bureaus where each bureau's final TGDs are posted. The ''Technical Guidance Draft Documents'' heading is the link to the Department's draft TGDs.

Ordering Paper Copies of Department Technical Guidance

 The Department encourages the use of the Internet to view and download TGDs. When this option is not available, persons can order a paper copy of any of the Department's draft or final TGDs by contacting the Department at (717) 783-8727.

 In addition, bound copies of some of the Department's documents are available as Department publications. Check with the appropriate bureau for more information about the availability of a particular document as a publication.

Changes to TGDs

 Following is the current list of recent changes. Persons who have questions or comments about a particular document should contact the person whose name and phone number are listed with each document.

Draft TGD: Substantive Revision

DEP ID: 294-2309-002. Title: Pennsylvania Radon Mitigation Standards. Description: The Pennsylvania Radon Mitigation Standards (PA RMS) details how radon mitigators can install mitigation systems that conform to the regulatory requirements in 25 Pa. Code Chapter 240 (relating to radon certification). These standards were first published in 1997. Since the PA RMS was published, additional field experience was gained and additional National radon mitigation standards have been published. This prompted a revision of the PA RMS with changes such as configurations to avoid condensation around the fans; suggested sealants and materials that are not permitted as sealants; active sub-slab depressurization systems can be exhausted at ground level instead of the current roofline level; new electrical information was obtained for low voltage and direct current fan use; recommended materials for exterior pipe vents; and the recommendation to consider use of an active radon warning device on the active sub-slab depressurization piping in addition to the U-tube manometer.

Written Comments: Interested persons may submit written comments on this draft TGD through Monday, November 28, 2022. Comments, including comments submitted by e-mail must include the commentator's name and address. Commentators are encouraged to submit comments using the Department's online eComment tool at Written comments can also be submitted by e-mail to or by mail to the Technical Guidance Coordinator, Department of Environmental Protection, Policy Office, Rachel Carson State Office Building, P.O. Box 2063, Harrisburg, PA 17105-2063.

Contact: Questions regarding this TGD can be directed to Robert Lewis at or (717) 783-9485.

Effective Date: Upon publication of notice as final in the Pennsylvania Bulletin.

Acting Secretary

[Pa.B. Doc. No. 22-1663. Filed for public inspection October 28, 2022, 9:00 a.m.]

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