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SCOPE OF AAS HTO ACCREDITATION <br />Kleinfelder, Inc. <br />AASH O in Ontario, California, USA <br />A C C R E D I T E D <br />Quality Management System <br />Standard: <br />FO R: <br />Accredited Since: <br />R18 Establishing and Implementing a Quality System for Construction Materials Testing Laboratories <br />C1077 (Aggregate) Laboratories Testing Concrete and Concrete Aggregates <br />C1077 (Concrete) Laboratories Testing Concrete and Concrete Aggregates <br />C1093 (Masonry) Accreditation of Testing Agencies for Unit Masonry <br />D3666 (Aggregate) Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials <br />D3666 (Asphalt Mixture) Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials <br />D3740 (Soil) Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction <br />E329 (Aggregate) <br />Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction <br />E329 (Asphalt Mixture) <br />Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction <br />E329 (Concrete) <br />Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction <br />E329 (Masonry) <br />Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction <br />E329 (Soil) <br />Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction <br />E329 (Sprayed Fire -Resistive Material) Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction <br />Page 1 of 11 <br />This certificate was generated on 03/19/2020 at 3:48 PM Eastern Time. Please confirm the current accreditation status of this laboratory at <br />aashtoresource.org/aap/accreditation-directory <br />09/15/1999 <br />01/10/2011 <br />01/10/2011 <br />05/23/2011 <br />01/10/2011 <br />01/10/2011 <br />01/10/2011 <br />01/10/2011 <br />01/10/2011 <br />01/10/2011 <br />08/09/2018 <br />01/10/2011 <br />06/09/2015 <br />