SB 102 The SB 102 Field Specialist certification is a one-day certification course that certifies an individual’s ability to properly sample and test soils and flexible base properties in the field in accordance with TxDOT Test Procedures.Â There is no demonstration or training; individuals must come prepared to pass examinations of associated test procedures through demonstration, verbal and practical methods. Once the evaluations are successfully completed, a final written examination is administered. A score of 80% or higher is necessary to obtain certification. Test Procedures covered: Click on link to view test procedure: Tex-100-E Surveying and Sampling Soils for Highways (August 1999) Tex-101-E Preparing Soil and Flexible Base Material for Testing (Part III) (January 2010) Tex-103-E Determining Moisture Content in Soil Materials (August 1999) Tex-115-E Field Method for Determining In-Place Density of Soils and Base Materials (Part I)(August 1999) Tex-140-E Measuring Thickness of Pavement Layer (August 1999) Tex-400-A, Sampling Flexible Base, Stone, Gravel, Sand and Mineral Aggregates (January 2010) Tex-600-J Sampling and Testing Lime (Part I) (Feb 2006) Re-certification Every three (3) years all SB 102 Field Specialists are required to re-certify. The re-certification course is a one day course. A Specialist can attend a re-certification class up to one year prior to the expiration date. If certification expires, Specialists will lose certification and be issued a new certification date upon completion of another SB 102 training and certification class.