National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Title/Authors	Accession Number	Publication Year	Page Count	Download
Development of Alternate Performance Standard for Radon Resistant Construction Based on Short-Term/Long-Term Indoor Radon Concentrations. Volume 1. Technical Report. Williamson, A. D; McDonough, S. E; Fowler, C. S.	PB92115211	1991	83 pages
Development of Alternate Performance Standard for Radon Resistant Construction Based on Short-Term/Long-Term Indoor Radon Concentrations. Volume 2. Appendices. Williamson, A. D; McDonough, S. E; Fowler, C. S.	PB92115229	1991	74 pages